ASUS Prime X399-A TR4 Motherboard - TR4 Socket for AMD Ryzen Threadripper Processors, Memory Socket: 8 x DDR4 3600 (O.C.)/3466 (O.C.)/3333 (O.C.)/3200 (O.C.)/3000 (O.C.)/2800 (O.C.)/2666/2400/2133 MHz, Max Memory: 128GB, Connectivity: 1 x LAN (RJ45), 2 x USB 3.1 Gen 2 Type-A + USB Type-C, 8 x USB 3.1 Gen 1, 1 x Optical S/PDIF out, 5 x Audio jacks, 1 x USB BIOS Flashback Button, 1 x M.2 Socket 3, with M key, type 2242/2260/2280 storage devices support (SATA&PCIE 3.0 x 4 mode), 1 x M.2 Socket 3, with M key, type 2242/2260/2280/22110 storage devices support (SATA&PCIE 3.0 x 4 mode), 1 x U.2 port, 6 x SATA 6Gb/s, Intel I211-AT Ethernet, 4 x PCIe 3.0 x16 (single@x16, dual@x16/x16, triple@x16/x16/x8 mode), Form Factor: Extended ATX