An accidental pull on the cable up to 22 lbs (10 kg) force will not separate the connectors. The latch must be intentionally raised in order to remove the plug. The connector system is designed to provide a standard USB interface with a unique latching mechanism to prevent the unintentional interruption of data transmission. The rugged (IP-Rated) and waterproof USB connectors come with a durability of 12,000 cycles and double-stacked USBs with additional power-delivery ports. The latch must be intentionally raised in order to remove the plug. Plastic wont rust, so its great for wet or humid conditions.

Or are you talking about laptops EDIT: Re-did the link, it was removed for some reason. USB Type-C Locking Connector Specification This specification defines the mechanical requirements for USB Type-C plug connectors and the guidelines for the USB Type-C receptacle mounting configuration to provide a standardized screw lock mechanism for USB Type-C connectors and cables. The design of Amphenol’s USB, Series A with this unique latching mechanism has been developed to address this major concern of unintentional interruption of data transmission. Plug them in internally, most motherboards have USB headers on them, buy one of these or these and then mount the USB device near the back of the case. Currently there are applications in a number of markets where vibration and inadvertent separation of the cable is a potential problem due to loss of data when the mated interface is accidentally broken. It relies on the design of the mating interface and the ground tabs to maintain the connection of the plug to the receptacle. The standard USB connector uses a push pull interface with no latching.

Locking usb connector