8GB KIT (2 x 4GB) For HP-Compaq HP Touchsmart Desktop IQ502kr IQ505 IQ506cn IQ507 IQ508cn IQ508d IQ518hk IQ826t. SO-DIMM DDR2 NON-ECC PC2-5300 667MHz RAM Memory. Genuine A-Tech Brand. 8GB KIT (2 x 4GB) SO-DIMM DDR2 NON-ECC PC2-5300 667MHz RAM Memory Genuine A-Tech Memory Lifetime Warranty Toll Free Technical Support 1-866-557-4527 Designed For HP-Compaq HP Touchsmart Desktop. (See Compatibility List Below)