A-TECH 2GB STICK Toshiba Mini Notebook NB305-A127 NB305-N440BL NB305-N440BN NB305-N440RD NB305-N440WH NB305-N442BL NB305-N442BN NB305-N442RD SO-DIMM DDR3 NON-ECC PC3-8500 1066MHz RAM Memory 2GB STICK 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 Toshiba Mini Notebook. (See Compatibility List Below)