Stay connected
Compatibility tips and upgrade deals, straight to your inbox. No spam.
Your system
4 guaranteed-fit options
This option is out of stock.
Specifications reported for the Sony VAIO VGN-NR420E/S.
Good to know
Free tools from Seifelden — no purchase needed.
Checks the drivers on your Sony VAIO VGN-NR420E/S, installs the safe updates Windows offers, guides the rest to the official download — and confirms exactly which of the upgrades above your machine has room for.