Purchased four to have Phobya 1080 radiator in Threadripper-build, replacing 4x 180mm Phobya PWM fans. CADade and 3D-print a bracket. + 6 year warranty. + Absolutely silent even at 100% OC CPU and GPU (EVGA 1080 FTW3) load. + Moves a sensible amount of air during this silent operation. + Awesome accessory package. (ULNA, 30 cm 4-pin extension, Y-splitter, lots of silicone suppressors) - The fan has a minimum speed of ~ 350 RPM, which is reached around 30-40% PWM. As said soundless at this RPM, but would have been nice to be able to override given the size and amount of air it still moves. (Flavor: Not in wise colors yet.) %: RPM (rounded) 100: 800 90: 750 80: 675 70: 600 60: 550 50: 450 40: 375 30: 350 (!) 20: 350 (!) 10: 350 (!) 0: 350 (!)