Hp/Compaq dc5800 SFF Intel Core ™ 2 Duo E8400 3Ghz CPU E8400 2 GB DDR2-Synch DRAM Intel ® Graphics Accelerator 3100 No HDD Rear: 6 USB 2.0, 1 serial port, 1 optional serial port, 1 optional parallel port, 2 PS/2, 1 RJ-45, 1 VGA, audio in/out Front: 2 USB 2.0, audio ports Integrated High Definition audio with ADI1884 codec, microphone and headphone front ports, line-out and line-in rear ports, multistreaming capable, internal PC speaker Integrated Intel® 82566DM Gigabit Network Connection