Rane SC-1.7 Security Cover 1U
The Rane SC-1.7 is a security cover for single rack space equipment. Simply mount it over the face of your device to prevent further changes to the interface.
Once you've rack mounted the 19 Inch unit, all you have to do is remove the upperleft and lower-right rack mounting screws. Then place the security cover over the unit and reinstall the rack-mounting screws and your Unit is safe from any type of intrusion.