Full Details from Amazon.com : http://www.amazon.com/gp/product/B000FVTPF0?tag=onigi-20
Kingston ValueRam 1GB 800MHz DDR2 Non-ECC CL5 DIMM
1 GB module of 800MHz DDR2 Desktop Memory
Specifically designed and tested for compatibility in various makes and models of desktop computers
240-pin unbuffered DIMM
From the industry leader in PC memory
Backed by a lifetime warranty and free technical support