4GB KIT 2 x 2GB For Acer Aspire Desktop Z3751 Z3761 Z3771-UR10P Z3801 Z5101 Z5600 Z5610 Z5700 Z5700-U4002 Z5710 Z5750 Z5751 Z5761 Z5761-UR20P Z5763 DIMM DDR3 NON-ECC PC3-10600 1333MHz RAM Memory 4GB KIT (2 x 2GB) 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 Acer Aspire Desktop. (See Compatibility List Below)