“I'm extremely frustrated and sad about this product. It does not work.
The kernel modules supplied are binary-only and the manufacturer has not released the source code. The card does not work at all with 64-bit Raspberry Pi OS, and would only run on very specific builds of the 32-bit OS (Buster, not Bullseye, last I checked). I made multiple attempts to contact the manufacturer, along with several others. The upshot is that it is now late March, I purchased the product in January, and I still do not have a working product. Their website does not work for contacting them.
I want to make clear that The Pi Hut is an excellent supplier, and I will continue to buy products from them! I just will not be dealing with OSA Electronics again.
Caveat Emptor :-(”
“after 3 weeks received my order, installed software for it now all get for sound is nouse no rea sound !! tried it on buster am sure it won't work on bullseye !!”