The CAMVATE C2271 HDMI CABLE CLAMP : WIRE HOLDER 1/4" 20 is compatible with the Camvate C1380, C1413, C1606, and C1850 camera cages for the Sony a6000, a6300, a6500, and NEX-7 cameras, and the Canon EOS M and M10 cameras. It attaches to the side of the cage with an included 1/4"-20 flat head screw, for which a key ring screwdriver is supplied. The screw is also knurled, so it can be handled tool-free.
The clamp secures your HDMI cable connector to protect it from accidental disconnections. It's rubber padded to safely clamp the connector, and it's adjustable to support connectors of different thickness.