Dell Precision T5500 Computer/ Workstation Main System Motherboard D883FThis product is compatible with, but not limited to, the following systems:Dell Precision Workstation T5500General:Chipset:Intel 5520 chipsetCompatible Processors:Quad-core Intel Xeon 5500 SeriesExternal Connectors:USB:SixSerial:OneParallel:OnePS/2(keyboard and mouse):TwoRJ-45 Ethernet:OneAudio:Two(microphone-in, line-out)eSATA:OneInternal Connectors:PCIe x16:Two(wired as x8)PCIe x16 Graphics:Two(Gen 2 up to 150W each)PCI-X:OnePCI:OneMemory:Slots:6 DIMM slotsMaximum:Up to 72GB with optional dual processors installedType:Three-channel memory architecture per processor with up to 1333MHz and up to 1066MHz DDR3 ECC Registered DIMM memory.Title Dell Precision T5500 Computer/ Workstation Main System Motherboard D883FConditionRefurbishedContentDell D883F MotherboardManufacturerDell ModelD883FCompatibilityDell Precision T5500 WorkstationSKUD883Fhttp://www.compeve.com/Products/Motherboards/Dell/T5500/D883F_compeve__2.jpghttp://www.compeve.com/D883F_compeve__1.jpg