SUPERMICRO SYS-7046A-HR+F 4U Rackmountable / Tower Server Barebone Dual LGA 1366 Intel 5520 DDR3 1333/1066/800 Series: SuperServer CPU Type: Dual Intel Xeon 5600/5500 series South Bridge: ICH10R +2x IOH-36D Memory Slots: 18 x 240Pin Max Memory Supported: 288GB ECC Supported: Yes Registered: Yes ATA: Single EIDE channel supports up to two UDMA IDE devices (IDE-M, IDE-S) including CF(Compact Flash) Card