This product is either discontinued or we cannot get that from suppliers.
Deepcool DP-MCH4-GMX400-XT, Cpu Cooler Dark Top Cover, Fan Speed 500~1500 RPM±10Percent, Fan Airflow 56.5 CFM, Air Pressure 1.66 mmAq, Noise 27 dB(A), 4-pin PWM, Hydro Bearing, LED.
The GAMMAXX 400 XT is a new model of the renowned GAMMAXX 400 series featuring a 6 color LED fan with PWM, a dark top cover and an improved mounting kit for easier installation