Dell Precision M2300 (Late 2007) - Manual (Page 55)

3. Remove the keyboard (see Keyboard ).
4. If a WLAN card is not already installed, go to step 5. If you are replacing a WLAN card, remove the existing card:
a. Disconnect the WLAN card from any attached cables.
b. Use your fingertips to carefully spread apart the metal securing tabs until the card pops up slightly.
c. Slide and lift the WLAN card out of its connector.
5. To install a WLAN card:
a. Move any antenna cables out of the way to make space for the WLAN card.
b. Align the WLAN card with the connector at a 45-degree angle, and press the card into the connector until you feel a click.
1 WLAN card 2 antenna cables (2)
NOTICE: To prevent damage to the connector, do not use tools to spread the securing clips.
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 Mobile Broadband card into the WLAN card slot.
NOTE: The WLAN card may have two or three connectors, depending on the type of card you ordered.
1 WLAN card 2 metal securing tabs (2)