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4 guaranteed-fit options
Guaranteed-fit promise
Every kit is matched to your machine's slots and checked against its published specs before we list it.
SATA 3.5" Hard Drive
SATA 3.5" Hard Drive · 1 TB
Verified fit for your systemNot stocked right now. It's verified to fit — get an email the moment it's back.
Every drive here is verified to fit this system. Pick a drive type, then a capacity. Muted means it fits too — just not stocked right now.
Software for your upgrade — matched to your HP dx6100 Microtower P4 520 HT 256M/40G CD LAN WXP Pro SP1a.
Checks the drivers on your HP dx6100 Microtower P4 520 HT 256M/40G CD LAN WXP Pro SP1a, 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 HP dx6100 Microtower P4 520 HT 256M/40G CD LAN WXP Pro SP1a.
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.