Dell OptiPlex 9020 (Mid 2013) - Manual (Page 12)

Installing The Expansion Card
1. Insert the expansion card into the connector on the system board and press down to secure it in place.
2. Install the cover
3. Follow the procedures in After Working Inside Your Computer .
Removing the Wireless Local Area Network (WLAN) Card
1. Follow the procedures in Before Working Inside Your Computer .
2. Remove the cover.
3. Remove the screws that secure the antenna puck to the computer.
4. Pull the antenna puck from the computer.
5. Press the blue tab and lift the latch outwards. Lift and remove the WLAN card from the connector on the system
board.
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