Antec Kuhler H2O 1250 240mm Liquid CPU Cooler Review @HiTech Legion
 

"Antec’s latest flagship CLC, the 240mm Kuhler 1250, is introducing a decidedly different take on CLC design. Rather than a single pump mounted to the CPU block, the Antec Kuhler 1250 has moved the pumps off the block, and has gone to a series dual pump setup. The advantages here are more numerous than you may think; in addition to the assumed higher flow and head pressure, redundant pumps act as a fail-safe, allowing for continued cooling in the case of a pump failure."

http://www.hitechlegion.com/reviews/...-cooler-review