SanDisk 4TB Extreme PRO Portable SSD - Up to 2000MB/s - USB-C, USB 3.2 Gen 2x2, IP65 Water and Dust Resistance, Updated Firmware - External Solid State Drive - SDSSDE81-4T00-G25
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Availability:
In Stock.
Arrives
Monday, Feb 16
Capacity: 4TB
Pattern: SSD
Features
- Save time storing and transferring data with powerful NVMe solid state performance featuring up to 2000MB/s(1) read/write speeds.
- A forged aluminum chassis acts as a heatsink to deliver higher sustained speeds in a portable drive thats tough enough to take on any adventure.
- Travel worry-free with a 5-year limited warranty(2) and a forged aluminum chassis-silicone shell combo that offers a premium feel and added protection.
- Up to 3-meter drop protection and IP65 water and dust resistance(4), and a handy carabiner loop for securing your drive all deliver extra peace of mind when youre out in the world.
- Easily manage files and automatically free up space with the SanDisk Memory Zone app(5)
Description
Creating top-tier content can put a strain on your device, your camera or your system. From the brand trusted by professional photographers worldwide, the SanDisk Extreme PRO Portable SSD provides powerful solid state performance featuring 2000MB/s read and 2000MB/s write speeds in a rugged storage solution that’s reliable for your toughest jobs.
Digital Storage Capacity: 4 TB
Hard Disk Interface: USB 3.2
Connectivity Technology: USB
Brand: Sandisk
Special Feature: Not_Performance_Used
Hard Disk Form Factor: 2.5 Inches
Hard Disk Description: Solid State Drive
Compatible Devices: Desktop, Laptop, Smartphone, Tablet
Installation Type: External Hard Drive
Color: Black
Hard Drive: 4 TB Solid State Drive
Brand: Sandisk
Series: SanDisk Extreme PRO Portable SSD
Item model number: SDSSDE81-4T00-G25
Hardware Platform: Mac, PC
Item Weight: 2.75 ounces
Product Dimensions: 0.41 x 2.28 x 4.36 inches
Item Dimensions LxWxH: 0.41 x 2.28 x 4.36 inches
Color: Black
Flash Memory Size: 4
Hard Drive Interface: USB 3.2
Manufacturer: Western Digital Technologies, Inc.
Language: English
Is Discontinued By Manufacturer: No
Date First Available: January 2, 2021
Frequently asked questions
If you place your order now, the estimated arrival date for this product is:
Monday, Feb 16
Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
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Capacity: 2TB
Pattern: SSD
Compact rocket. This thing is small and fast. Great little unit with great storage capacity. I’ve been using it for several months with no issues whatsoever. Runs cool and it’s easy to store due to its compact size. Because it’s an SSD and enclosed in a durable case, I’m sure it can take its bumps and abuse without issue. Well not cheap, it certainly doesn’t break the bank and its performance as well worth the cost.
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Reviewed in the United States on December 22, 2025 by Just Because
Capacity: 2TB
Pattern: SSD
TL;DR: This drive personally verified capable of large, sustained reads for hours if needed and had no problem transferring 500GB+ of data (both read and write) without slowing down at all. If you're tired of external SSDs that slow down due to cache outs and/or overheating, this drive will take care of those issues. ------- I've gone through several Samsung and Crucial external SSDs and one common thing is they all "cache out" sooner than later or even overheat and transfer speeds quickly plummet (sub 50-75MB/sec in some instances) when you're doing large (>100GB) transfers or if you're using the drive as an attached active media for real time use like using a replicated database or photo editing. If the job ends up R/W > 75-100GB+ I will always see drive slow downs consistently on those Samsung and Crucial models. They are good for small, quick transfers especially sub 25GB but anything remotely large and sustained and the slowdown happens. After doing a lot of research and reading along with personal recommendation from some fellow developers and editors, I gave the SanDisk 2TB Extreme PRO (you know it's serious when "PRO" is all in caps) a try. It is very compact and nicely built. Excellent external texture with even a corner clip hole. It comes with both USB-A and USB-C USB 3.2 2x2 cables and is ready for data transfers up to 2000MB/s. So how did it fair? I plugged it into my 1000MB/s rated USB-C port to backup over 500GB of data in one sitting and sat there and watched it transfer the entire set of data with zero slowdowns sometimes peaking OVER 1000MB/sec on large contiguous data asset transfers. This is a first among the pile of external drives I've used over the last 10 years. When it came time to copy the information back, the sustained speeds were still there during the entire transfer. I used it even to run some games for testing and it had no problems for Steam or Blizzard games albeit for normal use I use internal storage. I also did a couple of dev projects externally and it worked absolutely fantastic. As with most external drives, it does get warm during heavy use but nothing that is worrisome. I was able to pick up and hold the drive no problem. I tested it on both Windows 10 and 11 and Windows 11 is slightly slower than Windows 10 in data transfers under the same conditions but still peaked over 900MB/sec. It isn't the Sandisk's fault but the OS. Overall, I can't recommend this drive highly enough. It fixed all the issues I had grown used to accepting with my previous Samsung and Crucial models with expected slowdowns (it wasn't an issue of "if" but "when") and 2TB is spacious enough for now. If I end up needing more capacity I will pick up the 4TB version if needed but as for the 2TB model specifically? Highly recommended. 5/5
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Reviewed in the United States on November 12, 2022 by Electrosoft
Capacity: 2TB
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Doesn't get much more portable than these, unless stooping to a thumb drive; even has a hole to put it on a keychain. Used to use thumb drives, but these SSDs are much faster. After deleting included software (some sort of security stuff, perhaps for password protection), was left with 1.8TB, which seems about right for a 2TB drive (somehow, that's just how the math works with these things). Put it through its paces backing up a TB worth of PC data and copying over some stuff from thumb drives (all at the same time) and it never broke a sweat or had any problem. It gets warm when really busy, but cools right back down. I often leave it connected all day. At under $300, don't imagine I'll ever go back to thumb drives. Fingers crossed that it will last, but it seems very durable, supposedly able to withstand water, dust, drops, etc. Not going to test any of those claims. :) UPDATE: I never had a problem leaving the 2TB model plugged in to the PC for weeks on end, but the 4TB model (have tried a few of them) periodically stops reading and Windows 10 complains that the device is "not ready". Have tried USB 3.0, 2.0 with A connectors, with and without a hub. The only "fix" I've found for this issue is to unplug it and put it back, which sucks. :(
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Reviewed in the United States on October 12, 2022 by My Public Name
Capacity: 1TB
Pattern: SSD
OK, so I read many of the reviews of this drive, and I believe that people who are saying this doesn't give them the speeds that it's rated at, may not be testing it correctly. There are MANY factors that go into properly testing the speed of an HD ... OS file buffering/caching being a HUGE one. The drive that I bought, SDSSDE81-1T00-G25 - SanDisk 1TB Extreme PRO Portable SSD - Up to 2000MB/s, boasts speeds up to 2000MB/s (read/write). If you plug this drive into your computer and you use the blue USB 3.0 cable, you will not get the maximum speed out of this device because the max speed for USB 3.0 is 625MB/s. If your computer happens to truly have a USB 3.2 Gen 2x2 port, and you have a cable that supports that, then you could theoretically get the max speed out of this drive. Next, if your computer has a USB-C port, is it truly a USB 3.1 or better (or a Thunderbolt) port, or just a USB-C 3.0 port. Finally you have all of the OS file buffering stuff to deal with. Once you plug this drive in, you'll need to make sure you've set your OS's file buffering/caching to it's highest performance settings. Even with that, testing may not reveal the correct speeds because your OS may not buffer enough of the files being transferred to accurately test the read/write speeds of the drive. Another area for potential speed (and max file size) issues is the file system. You'll most likely want to format (keep) this SanDisk external SSD with exFAT (what it comes formatted in) unless you're going to use it 100% exclusively with your own computer (exFAT is readable/writeable in most OSes). If that's the case, it might be faster performing in your OS's native file system format, but that's not a for sure thing. It'll depend on the size and number of files that you're planning on using it to read/write. Several large files compared to thousands of small files makes a difference in performance too (you may want to look into this further yourself if it is a concern to you). I have a WIndows PC. After doing the stuff I mentioned above, when I do a large file transfer to the drive, it starts out at 1.7GB/s and then begins to drop to a steady 915MB/s or so. This reflects close to the drive's specs at the start, but Windows file buffering doesn't cache enough of the file to get a continual accurate reading, hence the speed drop in write speed. In testing out the read speed, I was only able to get around 700MB/s, but that is because I am copying a file from a super fast HD (this Sandisk drive) to a much slower HD (my internal PC HD), so it can't transfer any faster than this. I also tested reading and writing just from this Sandisk drive and got around the same 700MB/s, however, this is not a fair nor accurate test, because the same drive is doing the reading AND the writing. Finally, I ran the Blackmagic Disk Speed Test that everyone else seems to be using to test drive speeds, and got only 915MB/s read and write speeds. We know this is not accurate since I got 1.73GB/s in my own testing. So all of this to say that I believe this drive is probably fully capable of its advertised speeds, but you will likely not see speeds that fast due to OS limitations, other drive limitations, hardware limitations (your cable and/or port), etc. I'm happy with it because it averages about 1sec/GB throughput, and for files that Windows can buffer completely, I'm getting much closer to the spec's speeds. Hopefully all of this info. is helpful. Just remember, you get the best possible speed out of this drive by connecting it to a true Thunderbolt 3 port on your computer and by setting your OS's caching/buffering settings to maximize the performance (even a USB-C 3.1 or better port will get you the best speed out of this drive).
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Reviewed in the United States on February 28, 2021 by Mark D