Great fan, Quiet & interchangeable (colored) rings

Can access all know here. Price / performance is good here.
The fans themselves, I use as a case fan and for my WaKü (Corsair h100i). The fans run quietly and have a good air turbulence and dissipation.

About the fan controller Corsair Link2 can easily change the performance.
As a nice souvenir can be (as can be seen in the picture) Colored rings attach, included are red, blue and white.
Suitable for housing with window and eye-catching!

Technical Specifications:

The fan can be addressed with 7V 12V, 0,18A what the Silent -or- High Performance Mode allows.
Airflow (swirl / power): 37.85 CFM - 62.74 CFM
Static Pressure: 1:29 mm / H20 - 3.1 mm / H20
Noise Level: 23 dBA - 35 dBA
Numbers of revolution / Speed: 1450 RPM - 2350 RPM
Connection: via a 3pin plug