Kingston ValueRAM Desktop DDR3 1333MHz range of memory modules below. Buy Kingston ValueRAM products if you: - Have a generic system and know which motherboard is installed. - Know which memory you need and will buy by spec. (i.e., 256 MB DDR400 PC3200 CL2 DIMM) - Are 100% confident of the memory you need - please remember, Kingston ValueRAM products are ONLY returnable if the product is defective. Incompatibility does not mean the module is defective - Are looking for a competitively priced generic memory solution that offers a lifetime warranty and 100% testing.