HP EliteDesk 800 Hardware Reference Manual page 101

3. Slide the security cable through the hole in the cable lock on the rear of the monitor.
4. Use the bracket provided in the kit to secure other peripheral devices by laying the device cable
across the center of the bracket (1) and inserting the security cable through one of the two holes
in the bracket (2). Use the hole in the bracket that best secures the peripheral device cable.
ENWW Installing a security lock 93