Quasi system (not including memory, CPU & hard disk).Support 1366 full-range CPU, whether it is W series (W3503-3690, etc.) or X series (55-56,X5680 5690), all can be support, but the air-cooled radiator don't surport the high frequency CPU. Support DDR 3 pure ECC memory (8500E, 10600E, 12800E). Excellent compatibility & Excellent expansibility. Support the big-size graphics. The hard disk is fixed with the screw , don't need a hard disk frame .It's can be removed easily..4 PCs of 3.5-inch hard drive disks could be installed on it.
Motherboard expansion slot
positive: two USB2.0 port A microphone input port A headphone output port An optional IEEE 1394 a interface
On the back: Six USB 2.0 port An audio input port An audio output port A microphone input port 2 PS / 2 interface One for the integrated gigabit LAN RJ - 45 interface 4 usb ports