ASUS AP120-E1, the ideal sub entry solutions for either workstation or server applications. Supports Intel® P4/Celeron processor at 800FSB, 3 x 184 pin DIMM slots, up to 2GB unbuffered non-ECC PC3200/2700/2100 DDR SDRAM memory. Shop Modal header Powerful P4 Entry Server Optimized server placement provides advanced thermal solution for the system, and ensures high stability and performance. High PerformanceIntel P4 TM ( Prescott 800) up to 3.6GHz+ brings fast speed to customers Leading-edge DDR400 for SpeedSupports non-ECC DDR400 Memory up to 2 GB Reliable Data ProtectionICH5R provides built-in SATA RAID 0, 1 function to protect valuable data for customers Fast Networking TransferIntel 82547 CSA Gigabit LAN provides fast speed for networking transfer Key Spec Processor P4 800MHz FSB up to 3.6G+ Chipset Intel 848P MCH + ICH5R Memory Non-ECC DDR400 up to 2GB Expansion 1 x 64-bit/133MHz/3.3V PCI-X On-board Chip 1x Intel® 82547EI Gigabit Ethernet Chassis 426mm (L) x 192mm (W) x 490mm (D)