Got this in from HDMI.org, interesting read...
Source & More: HDMI.org
Let’s face it: cables sometimes come unplugged. Kids, dogs, vacuum cleaners, and the law of gravity all conspire occasionally to unseat the HDMI connector. The resulting signal loss can be anything from a minor nuisance to a business issue, depending on the application and the timing. But now, a few innovative HDMI Adopters are offering to solve the problem with connectors that latch or lock in place, mitigating the risk of an accidental disconnect.
While the HDMI standard does not specify any type of latching connector, this is a great example of Adopters identifying a need and coming up with solutions, working within the framework of the standard while adding new capabilities. The technical approaches may vary, but they’re all addressing the same objective: helping connectors stay seated in real-world applications
Source & More: HDMI.org