1GB DDR Memory Upgrade 4 Toshiba Satellite A20, A20-04D, A20-0C04D, A20-0CH4DP, A20-31Q, A20-H4D, A20-HKQ, A20-S207, A20-S208, A20-S430 Series, A20 Small Business Series, A25-S207, A25-S208, A25-S307, A25-S308, A25-S3072, A30-7JP Technology: DDR SDRAM Density: 1GB Pin Count: 200-Pin DDR SDRAM Speed: 266MHz, PC2100 CL: CL = 2.5