Hey, reaper wont register my XENYX Q802USB Mixer. As far as im concerned it should be working. I have the input on the track set to, Input, Mono, at front panel (black)
Behringer Xenyx 802 4-channel Analog Mixer | Sweetwater
Behringer XENYx 802 Ultra-compact 6 channel mixer with USB audio interface for live performance and prefessional recording - AliExpress