Dell Vostro 330 (Early 2011) - Manual (Page 38)

7. Pull the WLAN card out and remove it from the computer.
Installing The WLAN Card
1. Insert the WLAN card into the socket at a 45–degree angle.
2. Press down the WLAN card and replace the screw that secures the WLAN
card to the system board.
3. Connect the antenna cables. Connect the black cable and white cable to
the connector marked with a black and white triangle respectively.
4. Replace the system board shield .
5. Replace the front stand .
6. Replace the cover .
7. Follow the procedures in After Working Inside Your Computer .
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