Supermicro lets you take advantage of the increasing capacities of 3.5" form factor drives with the AS-2042G-6RF 2U server barebones system. It is based on the H8QG6-F motherboard and will accept up to 4 AMD Opteron 6100 series processors for unrivaled computing performance. To support all the processing power you can install up to 512GB registered ECC DDR3 memory in 32 DIMM slots. A 1400W 80PLUS Gold Certified power supply unit delivers strong and stable power to all components with excellent power efficiency. CPU Type: Quad AMD Opteron Interlagos 6200 series Quad AMD Opteron 6100 Series South Bridge: AMD SP5100 Memory Slots: 32 x 240Pin Max Memory Supported: 512GB ECC Supported: Yes Registered: Yes Serial ATA: 6 x SATA 300 SATA RAID: RAID 0/1/10