Dell OptiPlex 360 (Late 2008) - Manual (Page 63)

Drives 63
5 Disconnect the power and data cables from the back of the floppy drive.
6 Grasp the drive release latch and slide it toward the bottom of the
computer until the drive panel snaps open. While holding the drive release
latch in place, slide the drive out of the computer.
Drive Panel Insert
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2