Description : Support REG ECC server memory . Support M . 2 NVME SSD . High compatibility for a higher experience . All solid capacitors , fine workmanship , professional stability . The power socket has an 8 - pin * 2 , 24 - pin power connector . Memory slot marked orange color is the main slot , and black color is the sub slot , which must be inserted into the main slot first . Two CPUs of the same model are required : v3 requires dual power supplies , and both CPUs need to be powered At least two memories are required : one cpu needs to be inserted into one memory : if it is the m2 solid state of the nv protocol , it needs to be pulled out behind the m2 interface and inserted into the other side Specification : CPU socket : LGA 2011 - 3 ( E5 V3 CPU ) Support : same model CPU combination OR different model but same core number combination Not supported : Mixed use of different core numbers , for example : 4 cores + 6 cores cannot be mixed , 6 cores + 8 cores cannot be mixed Structure : E - ATX Memory socket : 8 * DDR4 Max memory supported : 8 * 32G DDR4 Memory type : 2666 / 2400 / 2133MHz Memory type supported : non - ecc / reg ecc / ecc ( The server ram can &# 39 ; t work with the desktop ram , it has the compability problem .) Expansion slot : 2xPCI - E X16 graphics card slot ; 2xPCI - E X1 ; 4xUSB3 . 0 pins ( 2 group ); 4x USB 2 . 0 pins ( 2 groups ); 6xSATA3 . 0 interface ; 2xNVME M . 2 Interface Integrated video card : No Size : 29 . 0x28 . 0x5 . 0 cm Package Includes : 1x Motherboard Note : Conversion : 1inch = 2 . 54cm , 1cm = 0 . 393inch Please allow slightly 0 - 1cm difference due to manual measurement . Colors can appear different depending on light and how the listing is viewed . Thanks for your understanding and attention . Wish you a pleasant shopping experience !