According to cablemod it is!  https://cablemod.com/compatibility/

It's not but apparently the coil whine issue is pretty common. My psu is only a few months old now and after reading several posts about it, it also started to develop the noise...go figure. I'm debating if I want to exchange it or if I can live with it, if there aren't any issues besides the occasional coil whine noise. I can reproduce the noise on command if I'm using firefox browser and just scrolling through the site. It seems to be silent for the most part on microsoft edge though. I'll have to see if I can hear it while I'm gaming though. :(