Dell GX280DT - GX280 Desktop Computer User Manual page 212

1 sled tab
2 sled
5. Remove the floppy drive from its sled by pulling the sled tab out while pushing the drive upand then sliding the drive out of the sled.
Installing a Floppy Drive
1. Snap the replacement drive into the sled and ensure that it is secure in the sled.
2. Connect the interposer board to the floppy drive:
a. Slide the floppy-drive cable into the connector.
b. Close the lever so that the cable is secure in the connector.
c. Line up the hole on the bottom of the interposer board with the notch on the connector, and snap the interposer board onto the drive.
3. Gently slide the drive into place until you hear a click or feel the drive securely installed.