2GB STICK For HP-Compaq Compaq CQ Desktop Series CQ2000AF CQ2000AN CQ2000DE CQ2000ES CQ2000FR CQ2000IL CQ2000IT CQ2000ME CQ2000UK CQ2001LA CQ2002LA CQ2003WM CQ2008CN CQ2008CX CQ2009F CQ2011L CQ2012D CQ2013D CQ2013L CQ2018AP CQ2018CN CQ2019AP CQ2020TW CQ2030L CQ2030TW CQ2035D CQ2100AF CQ2100AN CQ2100BE CQ2100DE CQ2100FR CQ2100IL CQ2100IT CQ2100KR CQ2100ME CQ2100NL CQ2100SC CQ2100UK CQ2101L. DIMM DDR2 NON-ECC PC2-6400 800MHz RAM Memory. Genuine A-Tech Brand. 2GB STICK DIMM DDR2 NON-ECC PC2-6400 800MHz RAM Memory Genuine A-Tech Memory Lifetime Warranty Toll Free Technical Support 1-866-557-4527 Designed For HP-Compaq Compaq CQ Desktop Series. (See Compatibility List Below)