HP CPQ 323003-001 D310M Desktop PC Motherboard - mPGA478B Processor Slot - MS-6541 Ver 2.1 BIOS - 800Mhz Bus Speed - Intel 845G Chipset - DDR-Synch Memory Supported 2 Slots - Micro ATX Form Factor - 3 x Audio Input - RJ-45 Input - VGA Input - 9-Pin Female Serial Input - 25-Pin Male Serial Input - 4 x USB input - 2 x PS/2 Input