Dell Vostro 260s (Mid 2011) - Manual (Page 48)

5. Grasp the card by it's top corners, and ease it out of it's connector.
Installing The WLAN Card
1. Insert the card into it's connector on the computer.
2. Push down the release tab on the card-retention latch.
3. Replace the antennae.
4. Replace the cover .
5. Follow the procedures in After Working Inside Your Computer .
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