CORSAIR TW3X4G1333C9A 4GB (2x2GB Module) 1333MHz DDR3 Memory Retail This 4GB twin kit memory solution runs at 1333MHz at CAS latency of 9-9-9-24. These modules are guaranteed to support all Dual-Channel DDR3 platforms from Intel and AMD. Key Features 4GB memory kit (2 x 2GB) for use with Dual Channel DDR3 systems 1333MHz Latency of 9-9-9-24, for reliability and performance XMS Heat Spreader Limited Lifetime Warranty Specifications Density: 4GB (2x2GB Module) Speed: 1333MHz Timing: 9-9-9-24 Type: DDR3 Format: DIMM Pin Out: 240 Pin Voltage: 1.5V The XMS3 family is Corsair’s mainstream line of performance DDR3 memory. These modules allow users to experience outstanding memory performance and stability. Available in Corsair’s new XMS heat spreaders, each module is built using carefully selected RAMs.