Dell XPS/Dimension XPS Gen 5 - Manual (Page 27)

6. Slide the media card reader into the adapter until the tabs on the rails securely click into position.
7. Connect the internal USB cable to the media card reader
8. Route the USB cable through the cable routing clip.
9. Connect the internal USB cable to the internal FLEX connector on the system board.
10. Close the computer cover .
CD/DVD Drive
Removing a CD/DVD Drive
1. Follow the procedures in " Before You Begin ."
2. Disconnect the power and data cables from the back of the drive.
CAUTION: Before you begin any of the procedures in this section, follow the safety instructions in the Product Information Guide.
CAUTION: To guard against electrical shock, always unplug your computer from the electrical outlet before opening the cover.