Full Details from Amazon.com : http://www.amazon.com/gp/product/B00BHLWU2C?tag=onigi-20
4GB 2X2GB RAM Memory for Toshiba Satellite A105-S4284 Black Diamond Memory Module DDR2 SO-DIMM
Brand new certified 200pin PC2-4200 533MHz DDR2 SO-DIMM Black Diamond Memory
Low density 4GB 2X2GB memory kit 2 sticks of memory module dual channel supported memory module
100 compatible garrantee for Toshiba Satellite A105-S4284
100 pre-tested on Toshiba system to ensure functionality
Lifetime warranty
