CPU Intel® Socket 2066 Core™ X-Series Processors Chipset Intel® X299 Memory Intel® Core™ X-series Processors (6-core above) 8 x DIMM, Max. 128GB, DDR4 4133(O.C.)/3600(O.C.)/2666/2400/2133 MHz Non-ECC, Un-buffered Memory Intel® Core™ X-series Processors (4-core) 4 x DIMM, Max. 64GB, DDR4 4133(O.C.)/3600(O.C.)/2666/2400/2133 MHz Non-ECC, Un-buffered Memory Supports Intel® Extreme Memory Profile (XMP) Expansion Slots 44-Lane CPU- 2 x PCIe 3.0 x16 (x16 mode) 1 x PCIe 3.0 x16 (x8 mode) 1 x PCIe 3.0 x16 (x4 mode) 1 x PCIe 3.0 x4 (x4 mode) 28-Lane CPU- 1 x PCIe 3.0 x16 (x16 mode) 1 x PCIe 3.0 x16 (x8 mode) 1 x PCIe 3.0 x16 (x4 mode) 1 x PCIe 3.0 x4 (x4 mode) 16-Lane CPU- 1 x PCIe 3.0 x16 (x8 mode) 2 x PCIe 3.0 x16 (x4 mode) 1 x PCIe 3.0 x4 (x4 mode) Storage Intel® X299 Chipset : 1 x M.2 Socket 3, with M key, type 2242/2260/2280/22110 storage devices support (PCIE 3.0 x 4 mode)*1 1 x M.2 Socket 3, with M key, type 2242/2260/2280 storage devices support (SATA & PCIE 3.0 x 4 mode)*2 1 x U.2 connector 6 x SATA 6Gb/s port(s) Support Raid 0, 1, 5, 10