The best memory upgrades for your Toshiba Satellite 4xxx Series 4020 CDT Notebook!
We've spent years amassing all the information we need to make sure you get the right memory for your Toshiba Satellite 4xxx Series 4020 CDT Notebook.
We guarantee this memory will work in your machine for the life of your machine. Your Toshiba Satellite 4xxx Series 4020 CDT supports up to 160 MB in one slots and modules must be installed one at a time.