Kingston HyperX Blu 2 GB Kit (2x1 GB Modules) 800MHz DDR2 DIMM Desktop Memory KHX6400D2B1K2/2GETR 2 GB kit including two 1 GB modules of 800MHz DDR2 desktop memory Utilizes HyperX module with faster latency timing for higher performance and speed Specifically designed and tested for compatibility in various makes and models of desktop computers From the industry leader in PC memory Non-ECC 240-pin DIMM type