Dell Inspiron 17R-5720 Owner's Manual page 37

Procedure
Remove the screw that secures the mSATA card to the
1
system-board connector.
Lift the mSATA card out of the system-board connector.
2
2
1
1 mSATA card
3 system-board connector
CAUTION: When the mSATA card is not in the computer, store it in protective
antistatic packaging. For more information,
see "Protecting Against Electrostatic Discharge" in the safety information that
shipped with your computer.
36 | mSATA Card (Optional)
3
2 screw