Cooler Master will unveil a limited edition black Cosmos case this month and FUD Zilla today wrote the case will be bundled with an all black Hyper Z600 cooler:
The cooler is black from top to bottom and it comes with a new 120mm PWM fan with intelligent fan control which automatically adjusts the fan speed from 800 to 2,200rpm. Another new feature is what Cooler Master calls an airflow cover which has been slotted into the top of the cooler to prevent upwards airflow and as such improve the overall cooling effect from the airflow from the fan.
It's a funky looking cooler, it's just a shame that you have to buy the Cosmos case to get your hands on it, as it won't be available on its own. Hopefully Cooler Master will make an updated version of the normal Z600 with the same features.