Antec unveiled a pair of new all-in-one CPU coolers in the Kühler H2O series, the Kühler H2O 1250 and Kühler H2O 650 (pictured in that order). The two build over their Series 4 predecessors with more powerful pumps, and new high-airflow fans that focus airflow through the radiator. The fan's motor doubles up as the pump's, and so the air and coolant flow are in perfect proportion. The H2O 650 features a 120 x 120 size radiator with a single fan, while the H2O 1250 doubles the dissipation area with a larger 240 x 120 radiator, that uses two of those fans. The two ship with support for the latest CPU socket types, including LGA115x, LGA1366, LGA2011, AM3+/AM3, and FM2/FM1.