Corsair memory 4gb single module 1333mhz cl 9 9 9 24 15v ddr3 dimm for intel and amd platform system builds and upgrades corsair built its reputation on performance memory that shines in the most demanding computing situations extreme gaming and high transaction processing environments but not all computers are put to such extreme usage so we brought the same reliability testing and corsair quality to a line of memory designed to support standard computing situations such as popular office