Support for one Intel Pentium 4 processor with an 800MHz system bus and optional Intel Extended Memory 64 Technology;

	Intel E7221 chipset with Intel Performance Acceleration technology；

	Dual-channel memory with support for up to 4 GB of unbuffered ECC or standard DDR2 400/533 SDRAM through four DIMM sockets;

	Integrated Intel 82541PI Gigabit Ethernet Controllers supporting 10BASE-T, 100BASE-T and 1000BASE-T;

	Four integrated Serial ATA ports with support for RAID levels 0, 1 and 10;

	Intel Server Management 5.8 included;

	Support Microsoft Windows Server 2003 Enterprise Edition, Windows 2000 Advanced Server, Windows XP, Red Hat Linux Enterprise and SUSE Linux Enterprise Server;

	Cooling system: 7 x 40mm ball-bearing easy-swap fans; Power Supply: 400W EPS Power Supply.

	Support for one Intel Pentium 4 LGA775 processor featuring Hyper-Threading Technology and a system bus of up to 800 MHz;

	Intel 915G chipset & Intel Extreme Graphics Engine 2;

	Support for up to 4 GB of Dual Channel DDR PC2100/PC2700/PC32002 SDRAM through four DIMM sockets;

	Four integrated Serial ATA ports with up to 300MB/s data transfer rate;

	Two full height expansion slots included (Optional Riser Card needed);

	High quality 8-channel AC'97 audio with S/P-DIF function;

	Support Microsoft Windows Server 2003 Enterprise Edition, Microsoft Windows 2000 Advanced Server, Microsoft Windows XP, Red Hat Linux Enterprise Server.

	Cooling system: 3 x 80mm high-pressure fans; Power Supply : 350W Power Supply.