Full Details from Amazon.com : http://www.amazon.com/gp/product/B007KW0REU?tag=onigi-20
Supermicro DDR3 800 LGA 2011 Server Motherboard X9DRX -F-O
Intel C602 chipset QPI up to 80GTs
Up to 512GB DDR3 1600MHz ECC Registered DIMM 16x DIMM sockets
Expansion slots 10 PCI-E 30 x8 and 1 PCI-E 20 x4 in x8 slot
8x SATA2 and 2x SATA3 ports
Integrated IPMI 20 and KVM with Dedicated LAN
10x USB 20 ports 4 rear 4 via header 2 Type A