HPE ProLiant DL325 Gen11 User Manual page 76

and then rotate the bracket 180°.
There will be an audible click to indicate that the bracket is locked in its adjusted position.
3. Connect the CMA hinged tabs and retention bracket to the rack rails:
a. Insert the inner tab into the slide rail.
b. Insert the outer tab into the mounting rail.
c. Insert the retention bracket into the opposite mounting rail.
There will be an audible click to indicate that the tabs and bracket are locked into place.
4. Open the cable clamps.
HPE ProLiant DL325 Gen11 Server User Guide 76