2GB KIT 2x 1GB Toshiba Satellite A Series A105-S1014 A105-S171 A105-S1712 A105-S2001 A105-S2011 A105-S2021 A105-S2031 A105-S2051 A105-S2061 A105-S2071 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 Satellite A Series. (See Compatibility List Below)