At $0.042/GB, this HP 2TB SSD is the cheapest NVMe solid state drive on Prime Day and is the perfect upgrade for older PCs

Say hello to the HP EX900 Plusa 2TB NVMe SSD that costs just $84.99, down from $99.99, a 15% discount or $15. It is available exclusively to Amazon Prime members on Prime Big Sale days and comes with a 5-year limited warranty, lifetime technical support, and a 100% compatibility rating with HP laptops and desktops.

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You must be an Amazon Prime member to benefit from this super low price. The EX900 Plus is also the cheapest internal PCIe solid state drive on the market; Yes, there are other SATA models, but they are almost obsolete.

The HP EX900 Plus is a Gen3 x4 model compatible with the popular M.2 interface and Biwin, the manufacturer behind the part, says it can reach up to 3.3 GBps and 2.7 GBps respectively, in sustained read speeds and writing.

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We haven't reviewed it yet, but our peers at Tom Hardware I tested the EX900, a slower version, at launch and concluded that it “passes very strict quality control standards and is guaranteed to work flawlessly on HP products. “It’s a good upgrade option for those looking to add NVMe performance to a system, but the price has to be right.”

Since this article was written over half a decade ago, the price per TB has dropped by a staggering 90%. So what is the ideal use case for the EX900 Plus? You can convert it if you have a spare compatible enclosure into a super fast portable SSD.

You can also swap out an existing system hard drive with one of these for a significant performance improvement. You will need to migrate your operating system and accompanying files using a data migration tool. But you can also use the free Acronis True Image software to clone your system drive.