Dell Latitude D630C (Late 2008) - Manual (Page 168)

168 Adding and Replacing Parts
b Use your fingertips to carefully spread apart the metal securing tabs
until the card pops up slightly.
c Slide and lift the Mobile Broadband card out of its connector.
NOTICE: The connectors are keyed to ensure correct insertion. If you feel
resistance, check the connectors and realign the card.
NOTE: Do not insert a WLAN card into the Mobile Broadband card slot.
NOTICE: The Mobile Broadband card may have one or two connectors, depending
on the type of card you ordered.
5 To install a Mobile Broadband card:
a Move any antenna cables out of the way to make space for the Mobile
Broadband card.
b Align the card with the connector at a 45-degree angle, and press the
card into the connector until you feel a click.
1 Mobile Broadband card 2 metal securing tabs (2)
1
2