This is a really cool little fanless PC called a fit-PC3. Made in Israel by Fit PC, they're tough little machines built very well and very compactly. Run on 12vdc - DC power supply included. Tons of useful ports and even includes the extra face card that gives you a total of five gigabit Ethernet ports and six USB ports. 4GB of memory, 320GB HDD that has been wiped (so no OS currently), AMD Radeon 6320 GPU, WiFi, gigabit Ethernet, eSata ports, RS-232 micro connector, DisplayPort, HDMI, USB 3.0, even an internal Mini PCI half-size slot. It powers up and works just fine, I booted it and tested it right before wiping the drive and listing it.

Note that it defaults to the DisplayPort for video output. I think you'll need an OS before it'll enable the HDMI port. If you need a specific DisplayPort adapter to connect your monitor let me know I can probably include one.