Tripp Lite U444-010-DP-BD USB-C to DisplayPort Bi-Directional Active Adapter Cable (M/M), 4K 60 Hz, HDR, Locking DP Connector, 10 ft. (3.1 m) | TestEquity
SmartLine Display Port Lock | PadJack Port & Cable Physical Network Security
DISPLAYPORT CABLE 1.4 1,8 METERS WITH LOCK 8K ULTRA HD - 5 + - AliExpress
Amazon.com: Monoprice DisplayPort 1.2 Cable, Supports up to 4K Resolution and 3D Video, Latching Connectors for Secured Lock Fit, 3 Feet, Black - Select Series : Electronics
When another student forgets that DP cables have a locking mechanism : r/techsupportgore