There are all sorts of reasons to buy an external hard drive. You can transport large files, improve your gaming performance and, obviously, expand your available storage. Now, you can buy one for less in the final hours of Prime Day 2025.

The SanDisk 2TB Extreme Portable SSD, CNET’s pick for the best rugged external mini SSD, is on sale for a whopping 43% off at $120. This deal is available for this device in black only. Other colors, such as Monterrey and sky blue, are also on sale, but not as heavily. 

In testing, we loved the ruggedness of this portable hard drive. It can handle a sustained spray of water and is dust- and shock-resistant. It importantly also features USB-C for fast transfer speeds.

With speeds up to 1,050 megabytes per second, this mini SSD is perfect for most people, unless you regularly work with very large files. 

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“Your speed will vary if you’re moving a mishmash of files to or from the USB drive,” said CNET Executive Editor David Carnoy during testing. “But when copying a single large file you should be able to get close to that fast transfer speed.”

Why this deal matters

With the SanDisk 2TB Extreme Portable SSD, you’ll have a device that packs quite a punch for its size. It’s suitable for most users, which is a major plus. The fact it’s $90 off is the cherry on top in our book. It’s a piece of tech that will be worth the investment.