Asus 970 PRO GAMING/AURA Manual page 56

SATA Port1 - Port4 [AHCI]
SATA ESP on PORT1 ~ 4 [Disabled]
Board SATA RAID ROM [Legacy ROM]
SATA Port5 - Port6 [AHCI]
SATA ESP on PORT5 ~ 6 [Disabled]
S.M.A.R.T. Status Check [Enabled]
2-20
SATA Port1–Port 4 and the SATA Port5–Port 6
[AHCI]
to [RAID]
to [AHCI]
Chapter 2: BIOS Information