video - What wires are optional in HDMI? - Electrical Engineering Stack Exchange
All HDMI Connector Pinout Explained(A,B,C,D) in 2023 | Hdmi, Connector, Ethernet cable
HDMI® Connector Pinout Explained
HDMI cables and their connector pinouts
File:HDMI Connector Pins.jpg - Wikimedia Commons
Eclyxun 1pcs Diy Standard Hdmi Welding Male Jack Plug 19 Pin Hd Cable Connector 19+1 Gold-plated Plug With Heat Shrinkable Tube - Connectors - AliExpress