Asus TUF Z270 MARK 2 Bios Manual page 48

1.6.7 Onboard Devices Configuration
Scroll down to view the other BIOS items.
HD Audio Controller
DVI Port Audio
Audio LED Lighting
S3/S4/S5 Audio LED
M.2_1 Configuration: [Auto][SATA mode][PCIE mode]
[Auto]
[SATA mode]
[PCIE mode]
ASMedia Back USB 3.1 Controller
This item allows you to enable or disable the ASMedia Back USB 3.1 Controller.
48
Auto-detects the M.2 device mode. If a SATA device is detected,
SATA6G_1 will be disabled.
Only supports M.2 SATA devices. Please note that SATA6G_1 port cannot
be used in this mode.
Only supports M.2 PCIE devices.
ASUS TUF Z270 MARK 2 BIOS Manual