Motherboard E-ATX for Dual Intel Xeon E5-2600 v3 Family Processors, QPI up to 9.6 GT/s - Supports up to 512GB DDR4 ECC LRDIMM in 8 slots, up to 2133MHz - On-Board : SATA 6Gbps (RAID), Intel i210 2x Gigabit LAN, RealTek ALC888 7.1 HD Audio with Optical S/PDIF header, 2x PCI-E 3.0 x16, 1x PCI-E 3.0 x8 (in x16), 1x PCI-E 3.0 x4 (in x8), 1x PCI-E 2.0 x4 (in x8) - Includes Thunderbolt Add-On Card support - MBD-X10DAL-i-O (Retail Box)