THE DARK ROCK 6 & DARK ROCK PRO 6
When placed side by side it's easy to see that the 162mm tall, 139mm wide and 102mm long Dark Rock 6 is dwarfed by the 169mm tall, 140mm wide and 147mm long Dark Rock Pro 6.
Since both models feature removable fans, they have fixed rail Systems on the sides.
The top of the Dark Rock 6 is magnetically attached to the heatsink while the top of the Dark Rock Pro 6 has the center 135mm attached to it.
Needless to say, the front fans are also removable (and height adjustable).
Both the front fan of the Dark Rock 6 and the center fan of the Dark Rock Pro 6 feature a performance/quiet switch (the front 120mm fan of the Dark Rock Pro 6 connects to the center one).
It may not be very easy to distinguish from the above picture but the Dark Rock Pro 6 comes with a total of 51 aluminum fins while the Dark Rock Pro 6 a total of 90 (45x2).
Both coolers feature 6mm thick all-copper heatpipes, difference is that the Dark Rock Pro 6 has one more.
When it comes to base both the Dark Rock 6 and Dark Rock Pro 6 have all-copper nickel-plated ones.

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