Virtual-Hideout posted a review on the ZEROtherm GX815 GPU & BTF90 CPU Coolers

the GX815 Extreme Gamer is an impressive cooler that really gets the job done. The fan noise wasn't even noticeable over the other gear inside the computer. As far GPU coolers go, I would have no problem recommending this unit to anyone wanting a quiet and efficient cooler

ZEROtherm GX815 GPU & BTF90 CPU Coolers Review