Asus,as most motherboard manufactures, provides manuals for their products.
X HERO:
http://dlcdnet.asus.com/pub/ASUS/mb/LGA1151/ROG_MAXIMUS_X_HERO/E13645_ROG_MAXIMUS_X_HERO_UM_V2_WEB.p...See page 92 to be extra sure.
PS: check users problems in this forum before buying.
Problems like: poor audio quality, possible USB problems, poor M.2 nut soldering, missing VRM temperature sensor on most boards, QVL for RAM is not really validated, M.2_1 shield is a heat shield instead of heat sink (traps heat)
