Fujitsu PRIMERGY RX2540 M7 Upgrade And Maintenance Manual page 250

Expansion cards and backup units
Figure 130: Perforated and non-perforated slot brackets
1 Full height bracket non-perforated
2 Full height bracket perforated
Installing a slot bracket
▶ Place the controller on the mounting tabs on the slot bracket.
▶ Fasten the slot bracket to the controller with two screws.
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Upgrade and Maintenance Manual
Low profile bracket perforated
RX2540 M7