1GB STICK For HP-Compaq HP Presario Desktop SR5023HK SR5023WM SR5025AN SR5027CL SR5027SC SR5027UK SR5030NX SR5032IL SR5033HK SR5034X SR5035KR SR5040AN SR5045AN SR5050NX SR5060AN SR5060CF SR5060IL SR5063CF SR5065AN SR5066CF SR5070CF SR5071CF SR5072CF SR5073CF SR5075CF SR5080AN SR5080CF SR5085AN SR5085CF SR5090AN SR5091CF SR5092CF SR5095CF SR5100FR SR5102FR SR5102HM SR5103LS SR5104FR SR5105SC. DIMM DDR2 NON-ECC PC2-4200 533MHz RAM Memory. Genuine A-Tech Brand. 1GB STICK DIMM DDR2 NON-ECC PC2-4200 533MHz 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)