HOWEVER, if you decide you want to quickly record your band's set and you connect this to the RCA jacks on the sound board, you will get a nasty ground buzz

There was loud buzzing, the sounds coming from the PC were extremely low, and my co-host on Skype couldn't hear me at all

Loud buzzing accompanies every recording

Well - after starting to use it on Windows 7 x64 I was dismayed to find simply awful electrical interference and buzz in recordings.

However, one of the output channels has acquired a noisy buzz and I had to stop using it

I needed something to get rid of the horrible buzz that plagues 99.9% all computers when you attach external speakers to them

UCA222 U-Control Ultra-Low Latency

then lookup using Audacity in YouTube to find how to set it up with the U-control to work

This U-Control works exactly the way I wanted it to