4GB KIT (4 x 1GB) For HP-Compaq HP Pavilion Desktop m7480.es m7480.es-a m7480.fr m7480.uk m7480n m7485.it m7490.fr-a m7495.it m7499.de m7500y m7510.uk m7520.uk m7525.es m7525.fr m7525.uk m7527.fr m7530.dk m7530.es m7530.fi-a m7530.no-a m7530.uk m7531kr m7533.fr m7535.uk m7540.ch m7540.dk m7540.es m7540.fi m7545.dk m7547.fr-a m7548hk m7550.dk m7550.fi m7552.de m7555.dk m7557c m7557c-b m7560.be. DIMM DDR2 NON-ECC PC2-5300 667MHz RAM Memory. Genuine A-Tech Brand. 4GB KIT (4 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 Pavilion Desktop. (See Compatibility List Below)