Biostar TB250-BTC Ver. 6.x Socket LGA 1151 Motherboard - Support the Intel 7th generation Core i7, Core i5, Core i3 processors in the 1151 package, Intel B250 single chip architecture, 2-DIMM DDR4-2400/2133/1866 up to 32G maximum capacity, 6 x SATA 3Gb/s Connectors, 1 x M.2 Key M 32Gb/s Connector, support M.2 type 2242/ 2260/ 2280 SATA 6Gb/s & PCIe Storage, 1 X DVI-D, Realtek ALC887 Audio, 1 x PCI-E 3.0 x16 Slot, 5 x PCI-E 3.0 x1 Slot(using for bitcoin mining, it is suggested to change to PCI-E 1.0 via BIOS), Realtek RTL8111H - 10/100/1000 Controller, 4 x USB 3.0 Port, 2 x USB 2.0 Port, 2 x USB 2.0 Port(only 5V power, up to 1.5A), ATX Form Factor Dimension: 29.5cm x 21cm ( W x L ), Retail Box, 2 year warranty.