A-TECH 4GB KIT (2 x 2GB) For eMachines E Series Notebook E440-1680 E640 E642 E644G E730 E732 E525 E525-2632 E528 E725 E727 E728. SO-DIMM DDR3 NON-ECC PC3-10600 1333MHz RAM Memory. Genuine Brand. 4GB KIT (2 x 2GB) SO-DIMM DDR3 NON-ECC PC3-10600 1333MHz RAM Memory Genuine A-Tech Memory Lifetime Warranty Toll Free Technical Support 1-866-557-4527 Designed For eMachines E Series Notebook. (See Compatibility List Below)