Fujitsu CELSIUS M4 Series Operating Manual page 84

System upgrades
Installing WLAN module
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► Slide the WLAN module into the slot on the front of the casing in the direction of the arrow (1).
Make sure that the screw holes for the screws are aligned.
► Fasten the WLAN module with the screws (2).
► Thread the USB data cable of the WLAN module through the opening in the direction of the
arrow (1).
► Connect the USB data cable of the WLAN module onto the corresponding connector on the
mainboard (also see the manual for the mainboard).
► Close the front panel (see "Closing the front panel").
► Close the casing (see "Closing the casing").
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A26361-K994-Z220-1-7619, Edition 2