4GB KIT (2 x 2GB) For Toshiba Toshiba Satellite A105-S4274 A105-S4284 A105-S4294 A105-S4304 A105-S4324 A105-S4334 A105-S4342 A105-S4344 A105-S4364 A105-S4374 A105-S4384 A105-S4547 A105-S45472 A105-SP2011 A105-SP4021 A105-SP4031 A105-SP4071 A110-152 A110-153 A110-159 A110-169 A110-178 A110-179 A110-277 A110-289 A110-352 A110-370 A110-381 A110-S4407 (PSAD0U-05C02E) (PSAD0U-0FP02G) A130-0LG01Q. SO-DIMM DDR2 NON-ECC PC2-5300 667MHz RAM Memory. Genuine A-Tech Brand. 4GB KIT (2 x 2GB) SO-DIMM DDR2 NON-ECC PC2-5300 667MHz RAM Memory Genuine A-Tech Memory Lifetime Warranty Toll Free Technical Support 1-866-557-4527 Designed For Toshiba Toshiba Satellite. (See Compatibility List Below)