The XMS3 family is Corsairs mainstream line of performance DDR3 memory. These modules allow users to experience outstanding memory performance & stability. Available in Corsairs XMS heat spreaders, each module is built using carefully selected RAMs. This 6GB triple kit memory solution runs at an incredibly fast 1333 M Hz at CAS latency of 9-9-9- 24. So not only do you get to run your system at 1333 M Hz but with these tight Latency timings your system performance will rock.