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This option is out of stock.
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Checks the drivers on your Lenovo T420+Mini Dock Series 3, 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.
Specifications reported for the Lenovo T420+Mini Dock Series 3.
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.