Dell OptiPlex 5055 Tower Owner's Manual page 19

Removing 2.5–inch hard drive from the hard drive bracket
1 Follow the procedure in
2 Remove the:
a Back cover
b Front bezel
c 2.5 inch hard drive assembly
3 To remove hard drive bracket:
a Pull one side of the hard drive bracket to disengage the pins on the bracket from the slots on the hard drive [1].
b Lift the drive out of the drive bracket [2].
Before working inside your computer.
Disassembly and reassembly 19