Product Detail Supports Intel Pentium 4 and Intel Celeron processors with 400-MHz system bus in the mPGA478-pin package Support for up to 2GB of DDR266 or PC133 SDRAM memory Four PCI slots, Hi-Speed USB 2.0 and optional integrated LAN. Integrated Intel Extreme Graphics and the SigmaTel AC'97 Audio solution With 4 PCI slots . The "Intel D845GLAD P4 Socket 478 ATX Motherboard" is best product for you. We recommended Intel D845GLAD P4 Socket 478 ATX Motherboard