USB-C to HDMI 2.0 Adapter - CEC Enabled Full Support Google Hangouts M | Accell
Amazon.com: HDMI cec Blocker. hdmi cec Interceptor. Support 4 k60hz. HDMI Cable for Devices Connected to HDMI Cables Through CEC adapters, You can manually Enable or disable The CEC Function : Electronics
HDMI ARC vs HDMI CEC | 4Cabling
Understanding HDMI-CEC frame : Tiny Electron's Blog