Fans are actually pretty good. I bought these for my new build, and they flow enough air my GPU fans hardly turn on. I use the Motherboard sync to control the RGB and that works fine. With the "pro" controller you can power 120mm and 140mm fans, which I am doing. I had one fan in the 5 pack that wouldn't spin on the low speed, only the high speed, and they sent me a new one. No Complaints. Solid product, solid customer service. I will use these again on my next build. A+ 10/10
Good service, came fast, i ordered 14 fans and alll arrive in very good shape! i will update the build of my PC soon! thanks