Micro Firewall Appliance 4x2.5GbE - Fanless N100 Mini PC

In this review the Micro Firewall Appliance is presented as a compact, fanless router appliance aimed at small offices, home labs and edge deployments that need a low-power, AES-NI capable platform. The bottom line is straightforward: this unit is for anyone who wants a silent, industrial-grade mini firewall with four Intel i226-V 2.5GbE ports and an N100 quad core processor, because it pairs energy efficiency with hardware acceleration for encrypted throughput and flexible storage and expansion options.

Key Features

• Quad 2.5GbE LAN: Four Intel i226-V 2.5GbE ports deliver faster wired throughput for multiple WAN/LAN setups and link aggregation for increased bandwidth.
• N100 quad core CPU: The Intel Celeron N100 4-core processor keeps power draw low while providing AES-NI support for accelerated VPN and encrypted traffic.
• Fanless, durable design: An aluminum alloy shell with three-sided cooling fins provides silent operation and industrial-grade durability for 7x24 operation.
• Flexible storage and memory: One DDR5 SO-DIMM slot up to 32GB, one M.2 2280 NVMe slot and a 2.5in SATA bay allow varied OS and storage configurations.
• Dual 4K display output: HDMI 2.0 and DP1.4 support dual 4K@60Hz displays for local management or monitoring screens.
• Router system compatibility: Hardware tested with pfSense, OPNsense, Untangle and supports PXE, ESXi and Watchdog for broad deployment options.

Who It's For

This appliance is targeted at IT professionals, small businesses and advanced home users who need a compact, silent firewall/router with modern 2.5GbE networking and AES-NI for VPN performance. It is a good fit for lab environments, branch offices or anyone consolidating multiple WAN links with Multi-WAN or WAN/LAN mode adjustments.

It is less suitable for users who need an out-of-the-box system with preinstalled RAM and storage or for those who require built-in WiFi; buyers should plan to add DDR5 memory, an M.2 NVMe or SATA drive and optionally a wireless module to meet their needs.

Pros & Cons

Pros

• Quiet, fanless operation with a robust aluminum chassis for continuous 24/7 use.
• Strong networking hardware with four Intel i226-V 2.5GbE ports for high-speed LAN/WAN setups.
• AES-NI support in the N100 CPU improves VPN and encrypted throughput.
• Flexible expansion with DDR5 memory slot, M.2 NVMe slot and 2.5in SATA bay.

Cons

• Sold as a barebone: no RAM or NVMe included, so additional components are required before use.
• Some system images or drivers may need manual updates for optimal performance on certain OS builds.

Specifications

Our Verdict

The Micro Firewall Appliance is a sensible value for users who need a silent, capable firewall platform with modern multi-gig networking and hardware VPN acceleration. Because it is a barebone, it offers flexibility to build a tailored appliance with DDR5 and NVMe, making it a cost-effective choice for labs and small sites that can handle component installation and occasional driver updates.

Frequently Asked Questions

Does it come with RAM or storage?
No, this is a barebone unit and ships without DDR5 memory or an NVMe/SATA drive installed.

Which router systems are supported?
Hardware has been tested with pfSense, OPNsense and Untangle; it also supports ESXi, Proxmox and common Linux distributions with up-to-date drivers.

Can it use cellular or WiFi modules?
Yes, there is an mPCIe wireless slot and a SIM slot for optional WiFi/3G/4G modules (choose one configuration).