Barebones Mini ITX Router, Firewall, Network Traffic Monitor/Sniffer with 2Gb DDR3 RAM, 1.8Ghz Dual Core Atom 2550 CPU, 5x Gbe LAN Jacks, PicoPSU-80, and AC to DC Power Supply Ideal for use with pfSense 2.x 32 or 64 Bit Versions Also compatible with m0n0wall, Smoothwall, and Others Just add your own 2.5" SATA Hard Drive or SSD and your choice of Network Monitoring/Firewall Software for a complete system Certified for 100% Compatibility with pfSense 2.1 32 or 64 Bit Also Compatible with SonicWALL, Smoothwall, Simplewall, Shorewall, Openwall, m0n0wall, IPFire, IPCop, BSD Router Project, and many others Includes M350 Case, PicoPSU-80, AC to DC Switching Power Supply, 2Gb DDR3 RAM, and Dual Core 1.8Ghz Low Power Atom CPU, Mounting Screws, and Driver Disk w/ Wiring Diagram 1 Year Warranty