SUPERMICRO SYS-5015TB-TB 1U Rackmount Server Barebone (Two Systems) LGA 775 Intel X48 DDR3 1333/1066/800 CPU Type: Supports Quad-Core Intel Xeon X3300/X3200 series Supports Dual-Core Intel Xeon E3100/3000 series Supports Intel Xeon processor L3360 and L3110 series Supports Intel Core2 Quad Q9000/Q8000/Q6000 series Supports Intel Core2 Duo E8000/E7000/E6000/E4000 series Supports Intel Pentium E5000/E2000 series Supports Intel Celeron E1000 and 400 series *NOTE: 1600MHz CPU has to use 1600 MHz XMP Memory. FSB: 1600/1333/1066/800 MHz South Bridge: ICH9R Memory Slots: 4 x 240Pin Max Memory Supported: 8GB Channel Supported: Dual Channel Serial ATA: 4 x SATA 300 SATA RAID: RAID 0, 1, 5, 10 (Windows) RAID 0, 1, 10 (Linux)