Cisco Firepower 9300 Hardware Installation Manual page 52

Mount and Connect
Rack-Mount the Chassis
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
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