To quote from the Electron Shepherd Website:

Initially released in 2021 and considered to be the highest quality HDMI™ converter module available for the Original Xbox™!

This tiny, power-packed module takes in the Component video and audio output from the Original Xbox™ and outputs an HDMI™ signal with embedded Dolby Surround Sound (if that audio setting is enabled in your Xbox’s settings). Unlike other converters on the market, the ElectronXout is compatible with all versions of the Original Xbox!

This module utilizes a fully custom PCB with a higher quality, next generation IC compared to what is typically used on the widely available analog-to-digital modules that are readily available online. If you are not happy with those modules, then you will absolutely be happy with these.

Check out the original Electron Shepherd site for more info including videos:
https://electron-shepherd.com/products/electronxout

I've had several of these from the beginning and they are awesome. You will receive a lightly used version that may have some of the early labeling before it was standardized on XOut.