Security Lock (Optional); Cable Lock (Optional) - HP xw9300 Service And Technical Reference Manual

Security Lock (Optional)

If a security lock is installed, remove it before servicing the unit. To remove the security lock, unlock it and
slide it out of the padlock loop as shown in the following image.

Cable Lock (Optional)

If a cable lock is installed, remove it before servicing the unit. To remove the cable lock, unlock it and pull
it out of the cable lock slot as shown in the following image.
84 Removal and Replacement Procedures