10 Best Small Office Firewall Hardware for 2026

The best small office firewall hardware depends on whether you want a managed security appliance or a flexible box for software such as pfSense. I’d put the Fortinet FortiGate-50G first for offices seeking a dedicated platform, while the Glovary N150 stands out for multi-gigabit flexibility and the Netgate 1100 for an integrated pfSense+ gateway. The key tradeoffs are managed features versus hands-on control, port speed versus software support, and modern hardware versus older or renewed equipment. A fanless mini PC can offer room to tailor your setup, but it asks more of the person maintaining it. Read on for how these ten options differ and which type of office each one suits.

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Key Takeaways

• The FortiGate-50G is the managed-security pick: it suits an office that wants a dedicated Fortinet platform, while mini PCs require more choices about software, setup, and upkeep.
• The Glovary N150 leads this lineup for multi-gigabit port flexibility: six 2.5GbE ports make it a stronger fit for faster local networks than the Gigabit-only appliances listed here.
• Netgate 1100 is the compact integrated gateway choice: its pfSense+ focus reduces hardware and software selection work, though buyers should check that its port and performance needs match their network.
• Protectli models trade turnkey setup for choice: the FW2B, FW4B, and FW4C serve buyers who want fanless hardware and control over their firewall software, with differences in port count and included components.
• Older and renewed listings need extra scrutiny: the Cisco ASA 5525-X and older FortiGate 40F may fit specific environments, but age, support status, and lifecycle matter more than port count alone.

Our Top Best Small Office Firewall Hardware Picks

Glovary N150 Fanless Mini PC Firewall, 6-Port 2.5GbE, 8GB DDR5 RAM, 128GB NVMe SSD		Best for Multi-Segment 2.5GbE Networks	Processor: 12th Gen Intel N150, 4 cores, up to 3.6 GHz	Memory: 8GB DDR5 SO-DIMM	Included storage: 128GB NVMe SSD	VIEW LATEST PRICE	See Our Full Breakdown
Protectli Vault FW2B Fanless Firewall Mini PC, Intel Celeron J3060, 2 Gigabit Ethernet Ports, Barebone		Best Compact Barebones Pick	Processor: Intel Celeron J3060 dual-core, 1.6 GHz up to 2.48 GHz	Memory: DDR3L-1600, maximum 8GB; not included	Storage: mSATA storage not included	VIEW LATEST PRICE	See Our Full Breakdown
Fortinet FortiGate-50G Firewall for Branch and Small Offices		Best for Managed Branch Security	Model: FG-50G	Ports: 5 Gigabit Ethernet RJ45: 1 WAN and 4 internal	IPS throughput: 2.25 Gbps	VIEW LATEST PRICE	See Our Full Breakdown
Fanless J3710 Mini PC Firewall Appliance with 4-Port 2.5GbE		Best for Virtualization Flexibility	Processor: Intel Pentium J3710, 4 cores, up to 2.64 GHz	TDP: 6.5 W	Networking: 4 x i225V 2.5GbE LAN ports	VIEW LATEST PRICE	See Our Full Breakdown
Fortinet FortiGate-30G Firewall with 4 Gigabit Ethernet Ports		Best for Simple Managed Setups	Model: FG-30G	Ports: 4 Gigabit Ethernet RJ45: 1 WAN and 3 internal	IPS throughput: 800 Mbps	VIEW LATEST PRICE	See Our Full Breakdown
Protectli Vault FW4C Fanless Firewall Mini PC, Intel J3710, 4 Ports, 4GB RAM, 32GB SSD		Best for 2.5GbE Open-Source Builds	Processor: Intel J3710 quad-core, 1.6 GHz, burst up to 2.6 GHz	Network ports: 4 Intel 2.5 Gigabit Ethernet	Memory: 4GB DDR3 SODIMM, 1600 MHz	VIEW LATEST PRICE	See Our Full Breakdown
Cisco ASA 5525-X Security Appliance Firewall, 8-Port Gigabit Ethernet (Renewed)		Best for Existing Cisco Environments	Model: ASA5525-X / ASA5525-K9	Ethernet ports: 8 Gigabit Ethernet	Management: Managed	VIEW LATEST PRICE	See Our Full Breakdown
Protectli Vault FW4B 4-Port Fanless Firewall Mini PC		Best Compact Gigabit Firewall Build	Processor: Intel Celeron J3160 quad-core, 64-bit, up to 2.2 GHz	Ethernet ports: 4 Intel Gigabit Ethernet	Memory: 4GB DDR3L RAM	VIEW LATEST PRICE	See Our Full Breakdown
Netgate 1100 pfSense+ Security Gateway Firewall, Router, and VPN		Best for Straightforward Setup	Processor: Dual-core ARM Cortex-A53, 1.2 GHz	Firewall throughput: Over 650 Mbps	Ethernet ports: 3 switched 1 GbE ports	VIEW LATEST PRICE	See Our Full Breakdown
Fortinet FortiGate 40F Firewall Appliance		Best for Managed Threat Protection	Model: FG-40F	Ports: 5 Gigabit Ethernet RJ45: 1 WAN and 4 internal	IPS throughput: Up to 1 Gbps	VIEW LATEST PRICE	See Our Full Breakdown

More Details on Our Top Picks

1. Glovary N150 Fanless Mini PC Firewall, 6-Port 2.5GbE, 8GB DDR5 RAM, 128GB NVMe SSD

   

   Best for Multi-Segment 2.5GbE Networks

   View Latest Price

   The Glovary N150 is my pick for a small office that needs to connect several wired segments while keeping faster-than-gigabit links. Its six 2.5GbE ports give it more room for WAN, LAN, guest, and monitoring connections than the four-port FortiGate-30G, while support for OPNsense, Linux, and OpenWrt lets an administrator choose the software approach. The fanless aluminum chassis suits a desk or wiring closet where noise matters. This is a mini PC rather than a turnkey security appliance, though, so setup and software maintenance fall to the buyer. The included 8GB RAM and 128GB SSD are modest, and the optional fan is not included. Compared with the FortiGate-50G, it offers more ports and software flexibility, but lacks the listed centralized Fortinet management and security service features.

   Pros:

   • Six Intel i226-V 2.5GbE ports support multiple network segments
   • Fanless aluminum body operates quietly
   • Supports OPNsense, Linux, and OpenWrt
   • M.2 NVMe and SATA expansion allow additional storage

   Cons:

   • Included 8GB RAM and 128GB SSD may limit heavier services and logging
   • Firewall software setup and maintenance are left to the buyer
   • Optional cooling fan is not included

   Best for: Small offices with an administrator who wants six 2.5GbE connections and the freedom to choose firewall software.

   Not ideal for: Teams seeking a managed, ready-to-deploy security appliance or expecting high memory and storage capacity out of the box.

   • Processor:12th Gen Intel N150, 4 cores, up to 3.6 GHz
   • Memory:8GB DDR5 SO-DIMM
   • Included storage:128GB NVMe SSD
   • Networking:6 x 2.5GbE Intel i226-V LAN
   • Storage expansion:Two M.2 2280 NVMe slots and one SATA 3.0 connection
   • Operating system support:OPNsense, Linux, and OpenWrt
   • Cooling:Fanless aluminum body; optional 80 x 10 mm fan
   • Display outputs:Two HDMI and one USB-C; triple 4K at 60Hz
   Our verdict

   “Choose the Glovary when port count and software choice matter more than turnkey management.”

   → See it on Amazon →

2. Protectli Vault FW2B Fanless Firewall Mini PC, Intel Celeron J3060, 2 Gigabit Ethernet Ports, Barebone

   

   Best Compact Barebones Pick

   View Latest Price

   The Protectli Vault FW2B suits a small office that wants a simple, compact platform for a basic two-interface firewall. Its two Intel Gigabit Ethernet ports fit a straightforward WAN-to-LAN layout, and AES-NI support is a useful hardware feature for compatible security workloads. At 4.25 x 4.56 x 1.69 inches, it is easier to tuck away than the Glovary N150, which has six 2.5GbE ports for offices that need more segments or bandwidth. The tradeoff is substantial: the FW2B is barebones, with no RAM, mSATA storage, or operating system included, so the buyer must source compatible components and install the firewall software. Its DDR3L memory ceiling is 8GB, and two gigabit ports leave little room for expansion. I’d choose it for a deliberately lean setup, not a growing multi-network office.

   Pros:

   • Small fanless aluminum enclosure fits tight spaces
   • AES-NI support for compatible security software
   • Tested with pfSense, OPNsense, and other network security software
   • Includes HDMI, USB, and serial console connectivity

   Cons:

   • No RAM, mSATA storage, or operating system is included
   • Two Gigabit Ethernet ports restrict physical network expansion
   • Maximum 8GB DDR3L memory is limited for additional services

   Best for: A hands-on administrator building a compact pfSense or OPNsense firewall for one WAN and one LAN.

   Not ideal for: Offices needing several physical network segments, faster-than-gigabit links, or a system ready to use without sourcing parts.

   • Processor:Intel Celeron J3060 dual-core, 1.6 GHz up to 2.48 GHz
   • Memory:DDR3L-1600, maximum 8GB; not included
   • Storage:mSATA storage not included
   • Ethernet:2 Intel Gigabit Ethernet ports
   • AES-NI:Supported
   • Operating system:None preinstalled; OS agnostic
   • Cooling:Fanless aluminum heat sink
   • Dimensions:4.25 x 4.56 x 1.69 inches
   Our verdict

   “Pick the FW2B for a small, self-assembled two-port firewall when compact size outweighs expansion.”

   → See it on Amazon →

3. Fortinet FortiGate-50G Firewall for Branch and Small Offices

   

   Best for Managed Branch Security

   View Latest Price

   The FortiGate-50G is the strongest fit here for a small office that values a managed security platform over choosing its own firewall software. FortiOS, integrated SD-WAN, centralized management, and zero-touch deployment make it suitable for a branch that needs consistent setup and administration across locations. Its listed IPS throughput of 2.25 Gbps and threat protection throughput of 1.1 Gbps also give buyers concrete capacity figures to compare with the smaller FortiGate-30G, which lists 800 Mbps IPS and 500 Mbps threat protection. The 50G has five Gigabit Ethernet ports, however, and no 2.5GbE links; the Glovary N150 offers six faster ports for a buyer willing to handle software configuration. This Fortinet is a more managed, purpose-built option, but its closed platform and branch focus make it less suited to DIY experimentation or extensive local port needs.

   Pros:

   • Combines firewalling and SD-WAN in one appliance
   • Centralized management and zero-touch deployment support branch rollouts
   • Listed IPS throughput is higher than the FortiGate-30G
   • Compact fanless design suits small office spaces

   Cons:

   • Five Gigabit Ethernet ports may constrain local network layouts
   • FortiOS offers less software choice than the Glovary mini PC
   • Designed for branch and small office deployments rather than larger networks

   Best for: Small branch offices that want centrally managed Fortinet security and SD-WAN in a compact appliance.

   Not ideal for: DIY firewall enthusiasts or offices that need many LAN connections, 2.5GbE ports, or an open software platform.

   • Model:FG-50G
   • Ports:5 Gigabit Ethernet RJ45: 1 WAN and 4 internal
   • IPS throughput:2.25 Gbps
   • Threat protection throughput:1.1 Gbps
   • SSL inspection throughput:1.3 Gbps
   • Operating system:FortiOS
   • Management and deployment:Centralized management and zero-touch deployment
   • Design:Compact and fanless
   Our verdict

   “Choose the FortiGate-50G for managed branch security when its five-port layout fits your office.”

   → See it on Amazon →

4. Fanless J3710 Mini PC Firewall Appliance with 4-Port 2.5GbE

   

   Best for Virtualization Flexibility

   View Latest Price

   This J3710 appliance makes sense for a small office that wants a fanless firewall platform with room to experiment across several operating systems. Its four 2.5GbE ports support faster wired links than the FortiGate-30G’s four Gigabit ports, while stated compatibility with OPNsense, Linux, ESXi, and Proxmox makes it more adaptable than a fixed FortiOS appliance. The quad-core, 6.5W Pentium J3710 and mSATA plus SATA storage slots suit modest firewall or virtualization projects. There are unanswered setup details, though: the product data gives no memory capacity or storage included, only a DDR3L slot. Compared with the Glovary N150, it has two fewer network ports and older memory support, but its virtualization compatibility may appeal to a lab-minded buyer. No Wi-Fi support is listed, so wireless access requires separate equipment.

   Pros:

   • Four 2.5GbE ports support faster LAN connections
   • Compatible with OPNsense, Linux, ESXi, and Proxmox
   • Fanless aluminum chassis supports quiet operation
   • mSATA and SATA slots provide storage options

   Cons:

   • Memory and included storage capacities are not specified
   • Single DDR3L SO-DIMM slot offers limited memory expansion information
   • No Wi-Fi support is mentioned

   Best for: A technically capable small office or lab that wants four 2.5GbE ports and flexibility to run firewall or virtualization software.

   Not ideal for: Buyers who need a fully specified, ready-to-deploy system or built-in Wi-Fi details before purchase.

   • Processor:Intel Pentium J3710, 4 cores, up to 2.64 GHz
   • TDP:6.5 W
   • Networking:4 x i225V 2.5GbE LAN ports
   • Memory:One DDR3L SO-DIMM slot
   • Storage:One mSATA slot and one SATA 3.0 slot
   • Expansion:One Mini-PCIe slot
   • Compatibility:OPNsense, Linux, ESXi, and Proxmox
   • Dimensions:11 x 10 x 3.5 cm
   Our verdict

   “Choose this J3710 when virtualization compatibility and four 2.5GbE ports suit a hands-on setup.”

   → See it on Amazon →

5. Fortinet FortiGate-30G Firewall with 4 Gigabit Ethernet Ports

   

   Best for Simple Managed Setups

   View Latest Price

   The FortiGate-30G is a compact choice for a small office that wants firewalling, SD-WAN, and Wi-Fi controller functions in one managed Fortinet appliance. Zero-touch deployment and centralized management can reduce setup work for a team without a dedicated network administrator. Its four Gigabit Ethernet ports cover a basic WAN and three internal connections, while the listed 800 Mbps IPS and 500 Mbps threat protection place it below the FortiGate-50G on stated throughput. That makes the 30G better suited to a smaller network than a branch expecting heavier inspection workloads. Against the Glovary N150, it trades six 2.5GbE ports and open software choice for a more integrated Fortinet feature set. The compact, fanless design is convenient, but the small-scale positioning and gigabit-only ports limit room for faster links or growth.

   Pros:

   • Combines firewalling, SD-WAN, and Wi-Fi controller functions
   • Zero-touch deployment and centralized management simplify administration
   • Compact fanless design suits small office installations
   • Four Ethernet ports support a basic WAN and internal network layout

   Cons:

   • Listed threat protection throughput is lower than the FortiGate-50G
   • Gigabit ports lack the faster links offered by the Glovary N150
   • Designed for small-scale environments with limited growth headroom

   Best for: A small office without a dedicated network administrator that wants centrally managed firewall and SD-WAN features.

   Not ideal for: Growing offices needing higher listed inspection throughput, 2.5GbE networking, or a configurable open software platform.

   • Model:FG-30G
   • Ports:4 Gigabit Ethernet RJ45: 1 WAN and 3 internal
   • IPS throughput:800 Mbps
   • Threat protection throughput:500 Mbps
   • Features:Firewalling, SD-WAN, and Wi-Fi controller
   • Deployment:Zero-touch deployment and centralized management
   • Design:Compact and fanless
   Our verdict

   “Pick the FortiGate-30G for a smaller office that prioritizes managed simplicity over higher throughput and faster ports.”

   → See it on Amazon →

6. Protectli Vault FW4C Fanless Firewall Mini PC, Intel J3710, 4 Ports, 4GB RAM, 32GB SSD

   

   Best for 2.5GbE Open-Source Builds

   View Latest Price

   The Vault FW4C suits a small office that wants four faster-than-gigabit links and plans to choose its own firewall software. Its four 2.5GbE ports give it more headroom for fast local connections than the Gigabit ports on the Protectli Vault FW4B, while the passive cooling keeps it quiet in a shared workspace. Protectli lists compatibility testing with pfSense, OPNsense, and other open-source options, but there is no operating system preinstalled, so setup takes more networking confidence than the Netgate 1100. The 4GB of RAM and 32GB SSD are modest, and the 2015-era J3710 platform is an older foundation for a new deployment. I would choose it for a compact, self-managed 2.5GbE build, not for a ready-to-run appliance.

   Pros:

   • Four 2.5GbE ports provide faster wired links than the FW4B’s Gigabit ports
   • Passive cooling avoids fan noise in a small office
   • Compatibility testing covers pfSense, OPNsense, and other open-source software
   • Compact 4.25 x 4.56 x 1.69-inch enclosure

   Cons:

   • No operating system is installed, so the buyer must handle setup
   • 4GB RAM and 32GB SSD constrain expansion and heavier software workloads
   • The J3710 platform dates to 2015

   Best for: Small offices with a technically capable administrator who wants four 2.5GbE ports and intends to install an open-source firewall OS.

   Not ideal for: Teams seeking a supported, ready-to-configure gateway or planning heavy workloads that need more memory and storage.

   • Processor:Intel J3710 quad-core, 1.6 GHz, burst up to 2.6 GHz
   • Network ports:4 Intel 2.5 Gigabit Ethernet
   • Memory:4GB DDR3 SODIMM, 1600 MHz
   • Storage:32GB SSD
   • Operating system:None preinstalled; OS agnostic
   • Cooling:Passive, fanless
   • Security support:AES-NI hardware support
   • Dimensions:4.25 x 4.56 x 1.69 inches
   Our verdict

   “Choose the FW4C if you want a quiet, compact four-port 2.5GbE base and are comfortable installing and managing the firewall software yourself.”

   → See it on Amazon →

7. Cisco ASA 5525-X Security Appliance Firewall, 8-Port Gigabit Ethernet (Renewed)

   

   Best for Existing Cisco Environments

   View Latest Price

   The renewed Cisco ASA 5525-X is the lineup’s fit for an office already organized around Cisco-managed security and rack equipment. Its eight Gigabit Ethernet ports offer more wired connections than the five-port FortiGate 40F, which can help when consolidating several network links in a rack. That port count alone does not make it the easier small-office choice: the listing identifies it as a managed, rack-mount appliance, while newer compact options such as the Netgate 1100 arrive with firewall software ready to configure. This unit is renewed, and the provided details do not state warranty duration or which accessories are included. I would shortlist it when Cisco compatibility and rack deployment matter more than a simple setup path; other buyers should verify the unit’s condition and included items before choosing it.

   Pros:

   • Eight Gigabit Ethernet ports accommodate multiple wired network connections
   • Managed appliance format fits an existing Cisco network
   • Rack-mount design suits offices with a network cabinet
   • Professionally inspected and tested under the Renewed program

   Cons:

   • Renewed condition may not suit buyers who want new hardware
   • Warranty duration and included accessories are unspecified
   • Rack-mount form and managed setup may be more than a small office needs

   Best for: Small offices with an administrator who already manages Cisco ASA equipment and needs an eight-port rack-mount firewall.

   Not ideal for: Very small teams without Cisco expertise, or buyers who want a new, compact appliance with clearly stated software and support.

   • Model:ASA5525-X / ASA5525-K9
   • Ethernet ports:8 Gigabit Ethernet
   • Management:Managed
   • Mounting:Rack mount
   • Wattage:75 watts
   • Connectivity:Ethernet
   • Condition:Renewed
   Our verdict

   “Pick the renewed ASA 5525-X when Cisco familiarity, rack mounting, and eight Gigabit ports are priorities and you can verify the unit’s warranty and accessories.”

   → See it on Amazon →

8. Protectli Vault FW4B 4-Port Fanless Firewall Mini PC

   

   Best Compact Gigabit Firewall Build

   View Latest Price

   The Vault FW4B is a compact base for a small office that wants to install its own firewall software but has no need for 2.5GbE links. Its four Intel Gigabit ports and fanless cooling cover a straightforward wired setup in a quiet space. Compared with the newer-speed Vault FW4C, the FW4B’s Gigabit ports offer less bandwidth headroom; compared with the Netgate 1100, it offers more ports but requires the buyer to supply and install an operating system. Protectli lists compatibility with pfSense, Untangle, OPNsense, and other open-source software, giving a technical administrator options. The 4GB RAM and 32GB mSATA SSD are modest, and coreboot is optional and requires user installation. I would pick it for a simple, self-managed gigabit network where a small footprint matters more than turnkey setup.

   Pros:

   • Four Intel Gigabit Ethernet ports suit a basic wired office layout
   • Fanless operation avoids adding appliance noise
   • Tested with pfSense, Untangle, OPNsense, and other open-source software
   • Small form factor with USB 3.0, HDMI, and serial console connections

   Cons:

   • Firewall operating system is not preinstalled
   • Gigabit ports provide less link speed than the FW4C’s 2.5GbE ports
   • Coreboot is optional and requires user installation

   Best for: A small office with an in-house technical administrator who needs four Gigabit connections in a silent, compact appliance.

   Not ideal for: Teams that need 2.5GbE throughput, a preinstalled firewall OS, or more memory and storage for added services.

   • Processor:Intel Celeron J3160 quad-core, 64-bit, up to 2.2 GHz
   • Ethernet ports:4 Intel Gigabit Ethernet
   • Memory:4GB DDR3L RAM
   • Storage:32GB mSATA SSD
   • Operating system:Not preinstalled
   • Cooling:Fanless
   • Hardware support:AES-NI
   • BIOS:Optional coreboot BIOS; user installation required
   Our verdict

   “Choose the FW4B for a quiet, four-port gigabit firewall build if you are prepared to install and maintain its software yourself.”

   → See it on Amazon →

9. Netgate 1100 pfSense+ Security Gateway Firewall, Router, and VPN

   

   Best for Straightforward Setup

   View Latest Price

   The Netgate 1100 is the most approachable pick here for a small office that wants pfSense+ without assembling a firewall from a bare mini PC. The software comes preloaded with lifetime updates, and TAC Lite support gives a small team a route to setup help. Its three switched Gigabit ports are fewer than the four on the Protectli FW4B or five on the FortiGate 40F, so it fits a simpler wired layout. The listed firewall throughput of over 650 Mbps also falls short of gigabit, which may matter for offices with faster internet or demanding traffic. In return, this compact unit is silent and low power, with a one-year hardware warranty. I would favor it when ease of deployment and included software support matter more than maximum port count or throughput.

   Pros:

   • pfSense+ is preloaded with lifetime software updates
   • TAC Lite support and setup assistance are included
   • Three switched Gigabit ports support a compact wired network
   • Silent, low-power operation suits a shared office

   Cons:

   • Specified firewall throughput is over 650 Mbps, below gigabit
   • Three ports provide fewer direct connections than the FW4B or FortiGate 40F
   • Hardware warranty is one year

   Best for: Small offices that want a compact pfSense+ gateway with software updates and setup support included.

   Not ideal for: Businesses with gigabit-plus firewall demands or more than three wired connections directly on the appliance.

   • Processor:Dual-core ARM Cortex-A53, 1.2 GHz
   • Firewall throughput:Over 650 Mbps
   • Ethernet ports:3 switched 1 GbE ports
   • Software:pfSense+ preloaded; lifetime updates included
   • Technical support:TAC Lite included; setup help available 24/7/365
   • Hardware warranty:1 year
   • Operation:Silent, low power
   Our verdict

   “Choose the Netgate 1100 if you want a supported, preloaded pfSense+ gateway for a modest network and can work within its throughput and port limits.”

   → See it on Amazon →

10. Fortinet FortiGate 40F Firewall Appliance

    

    Best for Managed Threat Protection

    View Latest Price

    The FortiGate 40F is the strongest fit in this group for a small business that wants a dedicated security appliance with Fortinet management features. Its five Gigabit Ethernet ports provide a WAN connection and four internal links, while the stated IPS throughput reaches 1 Gbps. Threat protection throughput is listed at up to 600 Mbps, so buyers should match expected traffic to that figure rather than assume every security feature runs at gigabit speed. Unlike the Netgate 1100, it does not include a stated subscription, which changes the ongoing service picture; unlike the Protectli FW4B, it is not presented as a platform for choosing among open-source firewall systems. The fanless desktop enclosure keeps it quiet, but connectivity is wired only. I would choose it when centralized Fortinet security matters more than subscription-free operation or software flexibility.

    Pros:

    • Five Gigabit Ethernet ports include one WAN and four internal ports
    • IPS throughput is specified up to 1 Gbps
    • Threat protection features and centralized management are available
    • Fanless desktop design operates quietly

    Cons:

    • Subscription is not included
    • Threat protection throughput is specified up to 600 Mbps
    • Wired Ethernet only; wireless connectivity is not built in

    Best for: Small businesses that want Fortinet threat protection and centralized management in a quiet, wired appliance.

    Not ideal for: Buyers seeking a subscription-included solution, wireless access in the firewall itself, or an open-source software platform.

    • Model:FG-40F
    • Ports:5 Gigabit Ethernet RJ45: 1 WAN and 4 internal
    • IPS throughput:Up to 1 Gbps
    • Threat protection throughput:Up to 600 Mbps
    • Form factor:Fanless desktop
    • Operating system:FortiOS
    • Input voltage:12 V DC
    • Subscription:Not included
    Our verdict

    “Choose the FortiGate 40F if your office wants Fortinet-managed threat protection and accepts separate subscription planning and wired-only connectivity.”

    → See it on Amazon →

How We Picked

I ranked these options by how well their hardware and management approach match a small office’s daily needs: network port count and speed, ease of deployment, room to grow, maintenance burden, and clarity of the platform. A dedicated security appliance can be a better fit for a team that wants vendor-managed tools, while a fanless mini PC can suit a buyer who values software choice and can handle configuration. I treated these as different routes rather than assuming one design works for every office.

The FortiGate-50G leads for buyers seeking a purpose-built small-office appliance; the Glovary N150 ranks high for multi-gigabit flexibility, and Netgate 1100 offers an approachable integrated pfSense+ option. The remaining products rank by narrower fit: number and speed of ports, platform age, whether components are included, and the work required to choose and maintain software. Older or renewed hardware ranks lower for general recommendations because lifecycle and support checks can outweigh a generous port count.

Factors to Consider When Choosing Best Small Office Firewall Hardware

Before choosing a box, map it to the network and the person who will maintain it. The right decision often turns on operational fit more than headline specifications.

Match throughput to your actual traffic

Start with the internet connection and the traffic that must pass through inspection, including VPN use and remote access. A firewall’s port speed does not by itself tell you how quickly it can process every security feature at once. Ask vendors or consult current documentation for throughput figures that reflect the functions you plan to enable. Small offices often overbuy port speed while overlooking the performance cost of filtering, VPN, or threat inspection. Leave headroom for growth, but base it on a plausible connection upgrade or added workload rather than a theoretical maximum.

Count ports by network role

List the connections you need for internet, internal networks, guest Wi-Fi, phones, cameras, and any separate management network. A firewall with many physical ports can reduce the need for a separate switch in a very small setup, but it does not replace a managed switch when you need many VLANs or powered access points. Check whether ports can be assigned flexibly and whether the interface layout suits your cabling. A common mistake is counting ports without reserving one for future expansion or administration. If the office already has a capable switch, fewer firewall ports may be enough.

Choose a management model your team can sustain

Dedicated appliances and self-managed mini PCs place different demands on staff. A vendor platform may offer guided setup and a unified management console, while an open firewall distribution gives greater control but requires someone to select updates, configure rules, and investigate problems. Decide who owns routine maintenance before purchase, including security updates and backups of the configuration. A technically flexible device can become a liability if nobody has time to maintain its software. If you hire outside IT support, confirm that they know the platform you plan to use.

Check lifecycle, subscriptions, and support

Hardware is only one part of the long-term commitment. For managed appliances, confirm which security services, updates, and support channels require an active subscription, and how long the model is expected to receive them. For refurbished or older devices, check the exact hardware revision, remaining vendor support, and availability of replacement power supplies or other parts. A low-maintenance purchase can cost more to operate if essential features depend on recurring services. Compare the full ownership requirements against the office’s budget and support capacity before deciding.

Plan for reliability and recovery

Consider what happens when the firewall fails or needs a software update during business hours. Fanless designs avoid a moving fan, but they still need suitable ventilation and a safe place away from heat and dust. Check whether the device supports configuration backups and how quickly staff could restore service on replacement hardware. Offices that cannot tolerate downtime may need a documented spare-device plan or a redundant design, which can matter more than adding another Ethernet port. Test the recovery process before relying on it during an outage.

Pay for features tied to a real requirement

Higher-end security functions can be valuable when the office needs centralized policy, threat inspection, site-to-site VPN, or managed reporting. They add little if the team will not configure or review them. On the other hand, a basic router-style setup may fall short when staff need segmented guest access or secure links between locations. Write down the few security and networking outcomes the firewall must support, then compare platforms against that list. This keeps the decision focused on work the device will actually perform.

Frequently Asked Questions

Should I choose a FortiGate appliance or a mini PC firewall?

Choose a FortiGate when you want a dedicated vendor platform and your office is prepared to use its management approach and any required subscriptions. A mini PC is a better match when you want to choose the firewall software and have someone able to configure and maintain it. Compare support arrangements and update responsibilities before comparing hardware alone. If no one on staff owns firewall administration, a self-managed box may create more work than its flexibility is worth. If your IT provider already supports one platform, that may be the simpler fit.

Is a 2.5GbE firewall worthwhile for a small office?

It can be worthwhile when the internet connection, internal file transfers, or network equipment can use speeds above 1Gbps. The Glovary N150 and the four-port J3710 appliance offer multi-gigabit ports in this roundup, but every connected switch and endpoint needs compatible links to benefit. For a typical Gigabit internet plan and ordinary office traffic, faster ports may not improve the experience. Check firewall throughput under the security functions you intend to enable as well. Port speed alone does not guarantee faster protected traffic.

Can I use a barebone Protectli Vault as soon as it arrives?

A barebone model such as the FW2B should be treated as a hardware starting point, not a complete managed firewall service. Confirm what memory, storage, power accessories, and software are included in the specific listing before ordering. You will also need to install and configure a compatible firewall platform and set up rules, updates, and backups. That gives an experienced buyer control over the system, but adds setup work compared with an integrated gateway. Make sure the person responsible for deployment can support the chosen software.

Is renewed or older firewall hardware a sensible choice?

It can make sense when the device must support an existing environment and its firmware and vendor support remain suitable for that use. For new deployments, verify the current support lifecycle, patch availability, licensing requirements, and condition of the specific unit. Older hardware may have ample ports yet lack the updates or service life needed for a security boundary. The Cisco ASA 5525-X listing is renewed, so its condition and support status deserve particular attention. Avoid basing a decision on port count without checking these points.

How many firewall ports does a small office need?

Count separate wired connections for the internet handoff, switches, any isolated network segments, and administration or failover links. If a managed switch handles VLANs and local devices, the firewall may need only a few ports. If the firewall itself must connect directly to several network segments, additional interfaces can simplify the layout. Leave room for a planned guest network or second internet connection if either is likely. Port needs depend on network design, so drawing the connections first is more reliable than choosing by office headcount.

Conclusion

For most small offices seeking a dedicated appliance, I’d start with the FortiGate-50G as best overall. The Glovary N150 is my best value in hardware flexibility for buyers who need several 2.5GbE ports and can manage their own software; the FortiGate-50G is also the premium pick for a managed platform. Beginners who want an integrated pfSense+ gateway should look at the Netgate 1100. For a compact fanless system with room to choose software, compare the Protectli Vault models, and choose the older Cisco or FortiGate 40F only after checking support and lifecycle. Match the firewall to the network administrator you have, not just the one you hope to have.