4GB KIT (2 x 2GB) EMachines E Notebook Series E440 E442 E525 (DDR3) E525-2632 E527 E528 E640 E642 E725 (DDR3) E727 E728 E732 SO-DIMM DDR3 NON-ECC PC3-8500 1066MHz RAM Memory Genuine A-Tech Brand 4GB KIT (2 x 2GB) 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 EMachines E Notebook Series. (See Compatibility List Below)