Wiistar MINI HDMI audio splitter (HDMI TO HDMI+AUDIO)\\
  * https://www.aliexpress.com/item/HDMI-Converter-Audio-Splitter-HDMI-to-HDMI-SPDIF-L-R-Audio-Video-Extractor-Converter-with-usb/32823820412.html\\
Brand Name:wiistar\\
Model Number:h-h\\
Gender:Male-Male\\
Connector A:HDMI\\
Connector B:HDMI,SPDIF,COAXIAL,EARPHONE\\
(A=in, B=out)\\

  * Approved by Crispin

Same adapter at different store reported by Josip Bašić in a comment on Udo Nallog's fb post:
  * https://www.facebook.com/groups/209280506324242/permalink/333292887256336/
  * https://www.aliexpress.com/item/HDMI-to-HDMI-SPDIF-COAXIAL-EARPHONE-2CH-5-1CH-Audio-Extractor-Converter-Audio-Splitter-with-usb/32780772075.html