The best memory upgrades for your Toshiba Satellite 4xxx Series 4280XCDT 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 4280XCDT Notebook.
We guarantee this memory will work in your machine for the life of your machine. Your Toshiba Satellite 4xxx Series 4280XCDT supports up to 576 MB in two slots and modules must be installed one at a time.