Legal
Stay connected
Compatibility tips and upgrade deals, straight to your inbox. No spam.
Your system
8 guaranteed-fit options
This option is out of stock.
8 guaranteed-fit options
Matched to this machine's drive bays and slots.
This option is out of stock.
This option is out of stock.
Specifications reported for the HP Presario CQ71-420sf.
Good to know
Free tools from Seifelden — no purchase needed.
Checks the drivers on your HP Presario CQ71-420sf, 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.
Guaranteed-fit promise
Every kit is matched to your machine's slots and checked against its published specs before we list it.
We've already verified which memory and storage upgrades fit this exact machine — they're just not in stock at the moment. Leave your email and we'll tell you the moment any of them is available again. Guaranteed fit, no wrong parts.