http://www.benchmark.pl/aktualnosci/asus-prime-x399-a-plyta-glowna-pod-proceso
ry-ryzen-threadripper.html
缩网址：https://goo.gl/NbqTKp
http://i.imgur.com/O0KVj3n.jpg
our PCI-Express x16 (x16 / x8 / x16 / x8), one PCI-Express x4 and one
PCI-Express x1 are available. There was also a pretty good set of connectors
for drives and drives on board: six SATA 6 Gb / s, two M.2 32 Gb / s, one of
them slipped under the X399 chipset and one U.2 32 Gb / s