Cisco Firepower 9300 - Page 58

Figure 35: Push the Rear of the Empty Chassis into the Rack Posts
Step 8 Secure the chassis ears to the rack with the four 10-32-in. screws and retention nuts (if you did not already install them
in Step 5) that were provided in the Firepower 9300 accessory kit.
Cisco Firepower 9300 Hardware Installation Guide
54
Rack-Mount and Ground the Chassis
Rack-Mount the Chassis