A-Tech 2GB KIT 2 x 1GB Toshiba Toshiba Satellite A135-S2326 A135-S2336 A135-S2346 A135-S2356 A135-S2376 A135-S2386 A135-S2396 A135-S2426 A135-S4407 SO-DIMM DDR2 NON-ECC PC2-4200 533MHz RAM Memory 2GB KIT (2 x 1GB) SO-DIMM DDR2 NON-ECC PC2-4200 533MHz 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)