Dell Kh290 System Board For Optiplex Gx620 Sff-Kh290 Number of Memory Slots: 4 PCI Express x16: 1 Onboard Video Chipset: Graphics Media Accelerator 950 CPU Type: Pentium 4 Pentium D Celeron Maximum Memory Supported: 4GB LAN Chipset: Intel Second LAN Chipset: Intel