About Extension Cords
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Extension Cord Locks
With Hook Closure
Hook-and-Loop Closure
Twist Closure
Cover mated connectors on extension cords to prevent disconnection.
Cord locks with a twist closure snap around a plug and socket and then twist together. The gasket provides a weather-resistant seal.
USB Cord Locks
 |  Cord Lock |
 Key |
Keep live data transfers and other critical processes or devices from disconnecting—these locks prevent a USB cord from shaking loose or being yanked out. By locking the cord in its port, they also prevent unauthorized removal. To install them, insert your USB cord into the lock, then plug the lock into your computer or other equipment. Press the tab to lock them in the port. You can only remove them using the key (sold separately).