Fujitsu PRIMERGY TX2550 M5 Upgrade And Maintenance Manual page 240

Hard disk drive (HDD) / solid state disk (SSD)
Figure 138: Installing the new 2.5-inch HDD/SSD SAS backplane (B)
▶ Fasten the 2.5-inch HDD SAS backplane in the HDD cage with four screws
(see circles).
The 2.5-inch HDD/SSD front cover does not need to be removed in
order to replace a 2.5-inch HDD/SSD SAS backplane. In the figures, the
front cover has been removed for illustration purposes only.
240 Upgrade and Maintenance Manual TX2550 M5