Dell XPS M1530 (M1530, Late 2007) - Manual (Page 39)

Communication Cards 39
antenna cable to the black triangle, and connect the gray antenna cable to
the gray triangle.
NOTE: The gray antenna cable may not be available in all computers. The
presence of the gray antenna cable in your Mini Card compartment depends
upon the type of display.
5 Secure unused antenna cables in the protective mylar sleeve.
6 Replace the cover and tighten the captive screws.
Removing a Mobile Broadband or WWAN Card
NOTE: WWAN is also available on an ExpressCard (see "Using ExpressCards" in
your Owner’s Manual).
1 Follow the procedures in "Before You Begin" on page 9.
2 Turn the computer over.
3 Loosen the two captive screws on the Mini Card module cover and remove
the cover.