Alphacool DC-LT ceramic 12 Volt pump, the compact pump with lots of steam under the hood! Water cooling generally is not only for Big towers and the high-end sector. Barebones, HTPC and Desktop systems also greatly profit greatly from a liquid cooling system. Here extreme overclocking is not the goal, but rather total silence in the system. Besides the fans, which are extremely quiet to silent thanks to the water cooling system, the pumps are another noise emitting element. Not with this pump! From the start much quieter than the majority of the competition and still powerful enough to cool CPU and GPU with ease. A ceramic shaft promises a long lifespan and permanently smooth operation. And the size? The outer dimensions are roughly the same as of a 2 Euro coin (about 5mm larger in radius). This is the currently most compact water cooling pump for computer cooling!