2GB DDR2 SO-DIMM Upgrade for Toshiba Satellite A105-S4254 A105-S4284 A105-S4324 A105-S4344 A105-S4397 Notebook PC2-5300 Computer Memory (RAM) 2GB DDR2 SO-DIMM Upgrade for Toshiba Satellite A105-S4254 A105-S4284 A105-S4324 A105-S4344 A105-S4397 Notebook PC2-5300 Computer Memory (RAM)