Aqua Computer's fan controllers are only surely working ones.
https://www.overclockers.co.uk/aqua-computer-quadro-pwm-fan-controller-wc-338-aq.html
In last year there was in this forum problems with Asus boards having functional fan control only during BIOS phase and fans going fult tilt once Windows took over.
Also in Finnish PC forum people had same issues.
Interesting. I already have an Aquaero 5-LT (PWM header has the cpu cooler and the 3 pin headers have my case fans) but I was planning on leaving it out of my new build as all the fans in my new case are PWM so I just won't have enough headers. I was planning to just use the motherboard. I think I'll reconsider now.
The one that you have linked, is each header individually controllable? If so I'll pick one of those up to keep everything under control. I do like Aquasuite, even if it is massively overspecced as a simple fan controller.
EDIT: I actually read the product description properly and they can. Perfect. Thanks a lot. I think I'll get one ordered. I missed this controller when looking for fan controllers with more PWM headers