2GB KIT (2 x 1GB) For HP-Compaq HP Presario Desktop SR5220ES SR5220LA SR5220NL SR5220SC SR5223WM SR5225LA SR5228ES SR5228UK SR5230CN SR5230CX SR5233HK SR5233WM SR5234X SR5235CX SR5237C SR5237CL SR5238CX SR5239ES SR5240AN SR5240IL SR5240KL SR5245ES SR5248ES SR5249ES SR5249UK SR5250AP SR5250CF SR5250ES SR5250IL SR5250NX SR5252AP SR5253HK SR5254NX SR5254X SR5255AP SR5255CN SR5255NL SR5260AN. DIMM DDR2 NON-ECC PC2-5300 667MHz RAM Memory. Genuine A-Tech Brand. 2GB KIT (2 x 1GB) 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 Presario Desktop. (See Compatibility List Below)