Asus RS720-E7/RS12 - Manual (Page 42)

Chapter 2: Hardware setup 2-22
2.8.2 Redundant power supply module
To install a second redundant power supply module:
1. Remove the redundant power
supply dummy cover.
2. Take out the seocond redundant
power supply module from its
package. Slide it into the chassis.
3. Firmly pull the lever to slide the
power supply module into the
chassis.