Corsair built its reputation on performance memory that shines in the most demanding computing situations: extreme gaming and high-transaction processing environments. The same reliability, testing and Corsair quality has been brought to a line of memory designed to support standard computing situations, such as popular office applications, and the 1333MHz SDRAM memory module is one of the most popular Corsair memory lines. The Corsair Value Select CMV4GX3M1A1333C9 4GB DDR3 SDRAM Memory Module stands up to these exacting standards.Corsair Value Select CMV4GX3M1A1333C9 4GB DDR3 SDRAM Memory Module:Memory Size: 4GB Memory Technology: DDR3 SDRAM Number of Modules: 1 x 4GB Memory Speed: 1333MHz Form Factor: 240-pin DIMM