Kingston H. Corporation ECC CL5 DIMM (Kit of 2) 2 Dual Channel Kit 800 MHz (PC2 6400) 240-Pin DDR2 SDRAM KVR800D2E5K2/2G Kits contains two 1GB modules of 800MHz DDR2 Desktop Memory Specifically designed and tested for compatibility in various makes and models of desktop computers From the industry leader in PC memory Backed by a lifetime warranty and free technical support