Qomo Interactive whiteboard Owner's Manual page 12

80"/ 92" with pen tray: In the frame of the board, prior to securing the pen
tray you will find a slot that accommodates a Kensington lock. If you would
like to use a Kensington lock insert and loop the cable through the center
hole on the frame, position the pen tray in line with the four screws, and then
screw the pen tray in place. (Shown below)
11