8GB KIT (2 x 4GB) For HP-Compaq G Notebook Series G72-130SB G72-130SF G72-140ED G72-150EF G72-150EG G72-150SF G72-227WM G72-250US G72-251NR G72-251XX G72-252US G72-253NR G72-257CL G72-260US G72-261US G72-262NR G72-a01SG G72-a02EG G72-a10EM G72-a10EV G72-a10SV G72-a20EM G72-a20EW G72-a26SO G72-a30EM G72-a30EW G72-a30SI G72-a40ER G72-a40EW G72-a40SA G72-a40SP G72-a50EC G72-a50ET G72-b02SA. SO-DIMM DDR3 NON-ECC PC3-8500 1066MHz RAM Memory. Genuine A-Tech Brand. 8GB KIT (2 x 4GB) SO-DIMM DDR3 NON-ECC PC3-8500 1066MHz RAM Memory Genuine A-Tech Memory Lifetime Warranty Toll Free Technical Support 1-866-557-4527 Designed For HP-Compaq G Notebook Series. (See Compatibility List Below)