Dell XPS 12 (9Q23, Late 2012) - Manual (Page 21)

Replacing the mSATA Card
WARNING: Before working inside your computer, read the safety information
that shipped with your computer and follow the steps in "Before You Begin" on
page 7. After working inside your computer, follow the instructions in
"After Working Inside Your Computer" on page 9. For additional safety best
practices information, see the Regulatory Compliance Homepage at
dell.com/regulatory_compliance.
Procedure
1 Align the notch on the mSATA card with the tab on the
mSATA-card connector.
2 Insert the mSATA card at a 45-degree angle into the mSATA-card connector.
3 Press the other end of the mSATA card down and replace the screw that secures
the mSATA card to the mSATA-card connector.
4 Adhere the mylar to the mSATA card.
Postrequisites
1 Replace the battery. See "Replacing the Battery" on page 14.
2 Replace the base cover. See "Replacing the Base Cover" on page 12.
3 Follow the instructions in "After Working Inside Your Computer" on page 9.
Replacing the mSATA Card | 21