https://wccftech.com/deepcool-announces-updated-gammaxx-400-ex-tower-cpu-cooler/

DeepCool has announced an updated version of the GAMMAXX 400 CPU cooler, called the GAMMAXX 400 EX. This updated version features denser cooler fins and dual fan support, which allows this CPU cooler to offer a significantly increased cooling performance when compared to the standard GAMMAXX 400 CPU cooler. For aesthetics, this CPU cooler features a top black cover that allows your PC to give a unique appeal.

The GAMMAXX 400 EX CPU cooler features denser heatsink, and the total surface area is increased by 20% that makes full use of the airflow generated by its twin fan design. This heatsink features a total of 56 fins allowing for much better heat dissipation when compared to the standard GAMMAXX 400 CPU cooler.