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Guaranteed-fit promise
Every part is matched to your machine's slots and drive bays and checked against its published specs before we list it.
DDR4 · SO-DIMM · up to 3200 MT/s
2×8GB = 16GB
Verified fit for your system$96.99
In stock — ships within 1 business day
≈ $6.06/GB · 16GB total after upgrade
Every option here is verified to fit this system. Muted means it fits too — we just don't stock it right now. Pick one to switch.
NVMe M.2 2280 (PCIe Gen 4) SSD · SATA 2.5" SSD · SATA M.2 2280 SSD · SATA 2.5" Hard Drive
NVMe M.2 2280 (PCIe Gen 4) SSD · 256 GB
Verified fit for your systemNot stocked right now. It's verified to fit— get an email the moment it's back.
Every drive here matches this system's published specifications. Pick a drive type, then a capacity. Muted means it fits too — just not stocked right now.
How we know NVMe M.2 2280 (PCIe Gen 4) SSD fits
Software for your upgrade — matched to your HP Pavilion 15-cs0129nb.
Checks the drivers on your HP Pavilion 15-cs0129nb, 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.
Complete your upgrade. This machine takes both memory and storage — add one from each tab above to do it in one order.
HP Pavilion 15-cs0129nb takes DDR4 SODIMM memory, 2 slots, up to 16 GB. Every option above matches those requirements, so it typically installs and runs without any firmware change.
“Verified fit” means the exact module was confirmed compatible against the manufacturer’s system scanner.
Specifications reported for the HP Pavilion 15-cs0129nb.
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