HP Compaq dc7600 P4 2.8Ghz 2Gb Ram SFF PC - No HDD - Intel P4 @ 2.8Ghz Processor - DVD/CD-Rom Drive - Front Mounted: Dual USB Input - Dual Audio Inputs - Rear Mounted: 6 x USB Input - RJ-45 Ethernet Input - VGA Input - 25-Pin Male Serial Input - 9-Female Serial Input - 2 x PS/2 Input - Dual Audio Input