Asus ROG MAXIMUS Z790 HERO LGA 1700 ATX Motherboard - Manual (Page 52)

2-10 Chapter 2: Basic Installation
Chapter 2
For 2280 length
A. Rotate and adjust the M.2 Q-latch at the 2280 position so that the handle
points away from the M.2 slot.
B. Remove the plastic film from the thermal pad.
C. (optional) Remove the thermal pad of the 2260 M.2 length screw hole and
install the bundled rubber for M.2 backplate if you are installing a single
sided M.2 storage device. DO NOT install the bundled rubber for M.2
backplate when installing a double-sided M.2 storage device.
D. Install your M.2 to the M.2 slot.
E. Rotate the M.2 Q-Latch clockwise to secure the M.2 in place.
Thermal pad Bundled rubber for M.2 backplate