HP Compaq DC5000 478 Motherboard -Intel Pentium 4, Pentium 4 HT and Celeron Processors support - Chipset: Intel 865G -Socket 478 - Onboard Graphics - 2x IDE - 3 x PCI Slots - Onboard Sound - Onboard 10/100/LAN - 4 x USB Ports - 4 x DDR Slots - 20 Pin ATX Power Connecto -Input/Output Ports hernet (RJ-45), Parallel (IEEE1284), PATA/IDE/EIDE, Serial (RS-232)