Genuine Dell XF826 P4 MotherBoard for Optiplex GX270 Small Desktop (SDT) Systems Compatible Part Numbers: R2472, J2865, U1324, DG279, H1105, H1489, FG011, CG566, R0786, N6780 Chipset: Intel 865G, Supported Processors: Intel Pentium 4 and Celeron Supported Memory: 333- 400-MHz DDR SDRAM, 128-, 256-, 512-MB, or 1-GB non-ECC, Memory Connectors: Four, Minimum Memory: 128 MB, Maximum Memory: 4 GB, Audio: 16-bit analog-to-digital, 20-bit analog-to-digital, AC97 Codec Video: Integrated or Expansion AGP card (Low Profile), Exapansion: PCI Connector: One, PCI Connector Size: 120 Pins, PCI Connector Data Width: 32 bits, AGP Connector: One, AGP Connector Size: 172 Pins, AGP Connector Data Width: 32 bits, AGP Bus Protocols: 8x/4x modes at 1.5v Peripheral Interfaces: Serial: 9-pin connector, 16550C-compatible, Parallel: 25-hole connector (bidirectional), Video: 15-hole connector, Network Adapter: RJ45 connector, Keyboard: 6-pin mini-DIN connector or USB connector, Mouse: 6-pin mini-DIN connector or USB connector, USB: two front-panel and six back-panel USB-compliant connectors, Audio: three connectors for line-in, line-out, and microphone; one front-panel connector for headphones. Compatible Part Numbers: R2472, J2865, U1324, DG279, H1105, H1489, FG011, CG566, R0786, XF826, N6780