Original product did not work, replacement seems to be ok
I bought this adapter to use my PC37X headset with my laptop, which only has one 3.5mm port. The first night I used it, it worked completely fine and as expected. On the second night, the microphone input started producing very loud static noises to the point I had to unplug it and just use my laptop's microphone instead. On the third night, I plugged the mic input back in to see if I could troubleshoot, and it was completely non-functional.
I brought this up with support and they shipped me a replacement that has been working fine for a few days longer than that now. Sometimes the headset stops working for a moment because it's not getting enough power through the adapter, but I expect that's more related to the headset than anything that could be solved by the adapter.