Intel Desktop Board BOXD975XBXLKR ATX Motherboard with Intel 975X (Socket 775) For the Intel Pentium 4 Extreme Edition, Pentium D, and Pentium 4 Designed to deliver the best experience for advanced gamers and power-users Based on Intel 975X Express Chipset and Intel Pentium processor Extreme Edition ATI CrossFire technology enables two ATI graphics cards to work together Supports Intel Viiv technology and comes with support software