Vortez published a review on the Fractal Design Prisma AL-12 PWM
A quote from the article:
Today we look at Fractal Design's brand new Prisma AL-12/AL-14 PWM fan, available in both 120mm and 140mm formats and with or without PWM support. They feature six individually addressable hub-mounted RGB LEDs.Fractal Design Prisma AL-12 PWM Review