Use this HDMI Cable Clamp from SmallRig to protect your HDMI cable when it is plugged into your camera. It attaches to the top left of a compatible SmallRig L-Bracket and securely holds an HDMI cable so it doesn't disconnect accidentally.
The clamp works with the 2122 L-Bracket (2019 version) for Sony a7 III/a7R III, the 2236 Arca L-Bracket with Half Cage for Sony a7 III/a7R III, and the 2258 L-Bracket for Nikon Z6/Z7 cameras. It secures to the L-bracket using the included 1/4"-20 screw and holds your HDMI cable at the turn of a thumbscrew.
Compatibility
SmallRig L-Bracket for Sony a7 III and a7R III (v2 2019 version, 2122)
SmallRig Half Cage with Arca L-Bracket for Sony a7 III and a7R III (2236)
SmallRig L-Bracket for Nikon Z6 and Z7 (2258)
SmallRig Half Cage with Arca L-Bracket for Sony a7 III and a7R III (2236)
SmallRig L-Bracket for Nikon Z6 and Z7 (2258)