Looking for cable to output from either HDMI or optical to RCA. Optical requires power to convert but HDMI does not. Which is a better option for audio ?

Plug to Play: ABLEWE Mini RCA to HDMI converter no extra drivers need, just plug and play,easy to use.Please hook up the USB power cable (included) to 5V power source during use.

Most TVs will output audio via analog out either over RCA outputs or a headphone style jack where you can connect a 3.5mm to RCA adapter cable.

This audio converter can also transfer a 4K HDMI signal and out it via HDMI, optical SPDIF, or RCA L/R stereo audio out. That audio can then be sent to an amplifier, AV receiver, soundbar, and more.