I’ve been testing out SanDisk’s new Extreme Pro USB 4 SSD, one of the first drives from a major brand to support the 40 gigabit-per-second USB 4 standard. It’s backward compatible with older USB ports, but if you have a machine with USB 4 or Thunderbolt 3, 4, or 5, you’ll see some great sequential read and write performance.
See it in action in my latest review.
You can find the drives on Amazon to get the current pricing (compensated affiliate link). Sandisk sent me the 2TB version and there’s a four-terabyte option as well. At the time I recorded the video, I didn’t see a one-terabyte model unfortunately.
The casing is solid metal with a rubber coating, similar to past models, but this new version is significantly larger. That’s likely due to it housing a full-size NVMe SSD along with a heat sink and other protective components. It’s IP65 rated, so it’s dustproof and splashproof. It’ll survive a short drop in water, but isn’t meant to be submerged, especially while powered on.
You only get a USB-C cable in the box, so if you need to plug it into a USB-A port, you’ll have to pick up a USB-C to USB-A cable or adapter separately. I tested it on a 5Gbps USB-A port and it worked fine—just not at its full potential speed.
Plugging it into my MacBook Air’s Thunderbolt port, I got over 2 gigabytes per seconds in writes and just over 3 gigabytes per second in reads with the Blackmagic Disk Speed Test. I didn’t notice any thermal throttling during sustained writes. When I switched to a Windows PC with the CrystalDiskMark, sequential write speeds hit 3.2 GB/s.
Random read and write speeds were lower than some competitors, especially in the single-threaded write test, which was one of the lowest I’ve seen in a while. For tasks involving lots of small, random data access—like running an OS—you might see better performance from other drives. Samsung’s Thunderbolt-based X5, for instance, did better in that department.
But for my use—moving large video files and backing up footage—it’s excellent. Transfers are fast and consistent, and that’s really what I need when I’m out in the field or editing on the go.
It’s compatible with game consoles, but not ideal for newer titles on the Xbox Series X/S or PlayStation 5. That’s because the game consoles have USB 3.2 ports that can’t hit the full speeds this drive can achieve. The Xbox requires propietary storage modules that connect to the system bus while the Playstation 5 uses internal NVME drives to reach adequate speeds. That said, older titles will play fine off the Sandisk drive.
I also tested it with my iPhone 16 Pro. It took a second for the phone to recognize it, but once it did file transfers were quick and easy.
For mobile and general USB storage use, it behaves like other SSDs I’ve tested. It’s not the smallest drive around, but the five-year warranty and high-speed performance for supported devices make it worth a look.
Disclosure: Sandisk sent me this drive free of charge, however no other compensation was received and they did not review or approve this before it was uploaded.