ASUS ROG ZENITH EXTREME ALPHA sTR4 Extended ATX AMD Motherboard

ASUS ROG ZENITH EXTREME ALPHA sTR4 AMD X399 USB 3.1 Extended ATX AMD Motherboard Brand: ASUS CPU Socket Type: sTR4 Chipset: AMD X399 Serial ATA (SATA): 8 x SATA 6Gb/s Form Factor: Extended ATX Number of Memory Slots: 8x288pin (DDR4) Memory Standard: DDR4 3600(O.C.) / 3466(O.C.) / 3200(O.C.) / 3000(O.C.) / 2933(O.C.) / 2800(O.C.) / 2666 / 2400 / 2133 MHz ECC and non-ECC, Un-buffered Memory PCI Express 3.0 x16: 4 x PCIe 3.0 x16 (x16, x16/x16, x16/x8/x16, x16/x8/x16/x8)