Corsairs mainstream memory solution 4gb 1x4gb 1333mhz 9 9 9 24 for amd and intel core i3 i5 and core i7 dual channel memory processors and platform the xms3 family is corsairs mainstream line of performance ddr3 memory these modules allow users to experience outstanding memory performance and stability available in corsairs xms heat spreaders each module is built using carefully selected rams specification density 4gb 1x4gb module speed 1333mhz timing 9 9 9 24