HP Compaq Elite 8300 All-in-One Maintenance & Service Manual page 81

8. Lift the module to a 45-degree angle (1), and then pull it away to remove it from the socket (2).
Figure 7-53 Removing the WLAN module
To install the WLAN module, reverse the removal procedures.
NOTE: WLAN modules are designed with a notch to prevent incorrect insertion.
WLAN module 73