Dell Optiplex GX280 SFF SCKT 775 Motherboard 0FG113 - FG113Dell Desktop MotherboardSFX System BoardDell Optiplex GX280 SFF Motherboard / Dell GX280 SFF SCKT 775 Motherboard / Dell GX280 775 SFF Motherboard / System Board (Small Form Factor) / Dell H8164 GX280 System Board / Dell system board GX280 SFF 2 memory slots 1 PCI 1 AGPOptiplex: GX280 Small Form Factor (SFF) Works with Intel 775 CPUs 2 - DDR2 SDRAM sockets Memory DIMM Slots (8GB Max)Video Onboard Audio Onboard 1 - x16 PCI-e Slot 1 - PCI Slot 6 - USB 2.0 Ports 1 - Serial ATA (SATA) Ports 1 - Parallel Printer Port 1 - 9-Pin Serial Port 1 - 10/100 Network PortGrade - A1 X SATA ConnectorDell Part Number: H8164Intel 915G Express Chipset Socket mPGA775 Supporting Pentium 4 and Celeron Processors533/800 MHz system busIntegrated Intel Graphics Media Accelerator 900PCI-E slot for user add-on videoIntegrated 10/100/1000 LanIntegrated SoundSerial ATA ControllerATA-66/100 IDE Hard Disk ConnectorsOne Floppy Connector1 PCI Card Slot6+2 USB 2.0 PortsAudio Ports for line-in, line-out, and microphone1 Serial/1 Parallel Port