Product DescriptionBiostar P4M900-M4 Motherboard If you’re looking for superb performance from an Intel Pentium or Celeron D-driven system, here’s your platform. And the Biostar P4M900-M4 micro-ATX Socket 478 platform is compatible with the Windows Vista operating system. Based on the VIA P4M900/VT8237A chipsets, the P4M900-M4 supports DDR2 533/667 MHz memory up to 4GBm PCI-E x16/x1, SATA RAID (0,1), and features VIA Chrome9 HC IGP onboard graphics with a maximum memory of 256MB. This rock-solid mainboard also supports 6-channel HD audio, and Fast Ethernet LAN. The P4M900-M4’s exclusive Biostar technologies include FLASHER, 9th Touch, WarpSpeeder, BootBlocker, WatchDog, and WINFLASHER. An ideal board for home, school, surfing the Internet, or multimedia entertainment. Factory direct pricing and outstanding performance make the Biostar P4M900-M4 one of the best values on the market.