The highest performing kit features two 2GB modules rated to run at 2,133MHz with latency timings of 9-11-9-27. A dual channel 4GB (2x2GB) kit is rated to run at 2,000MHz with the same timings, while a triple channel 6GB (3x2GB) kit can also by run at a frequency of 2,000MHz but with slightly faster latency timings of 9-10-9-27. According to Kingston, all sticks can achieve their top-rated speeds at the standard maximum voltage setting of 1.65V, but the extra cooling should provide a little head-room for those looking to push their systems a bit harder without making them unstable.
All modules also support Intel XMP profiles to make things easier for overclockers, and are backed by a lifetime warranty as well as free technical support from Kingston. In terms of pricing, the HyperX H2O kits are available at $157 for the 2,000MHz 4GB kit, $205 for the 2,133MHz pair, and $235 for the triple channel 6GB set running at 2,000MHz.