DELL Y6281, WC765, H8164, XF950, H8367, H5354, FG113, C6206, DG403, D4553, H8164, FG112, CG817, D7726 OPTIPLEX GX280 Small Form Factor (SFF) MOTHERBOARD Socket: LGA775 Socket LGA775 PROCESSOR NOT INCLUDED 6 - USB ports in back, 2 - USB ports in front, 1 - Serial/1 Parallel Port, 1- VGA, 1 - Ethernet, 3 - Audio, 1 - PCI-Express x 16 video slot and onboard video, 1 - PCI-express 16 Slot, 1 - PCI Slot 2 - DDR2 DIMM slots - up to 4 gb memory MEMORY NOT INCLUDED Compatible part numbers: Y6281, WC765, H8164, XF950, H8367, H5354, FG113, C6206, DG403, D4553, H8164, FG112, CG817, D7726