Kingston HyperX 2GB Kit (2x1GB Modules) 800MHz Nvidia SLI Ready DDR2 Desktop Memory (KHX6400D2LLK2/2GN) 2GB Kit of 800MHz DDR2 NVIDIA SLI Ready 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 Low-Latency 240-pin unbuffered DIMM type