SanDisk Extreme Pro 4TB Portable NVMe SSD, USB-C, up
SanDisk Extreme Pro 4TB Portable NVMe SSD, USB-C, up to 2000MB/s, Ruggedised and Water-Resistant, Solid State Hard Drive
Fast and Dependable
Get powerful NVMe solid state performance featuring 2000MB/s** read and 2000MB/s** write speeds in a portable drive that’s reliable enough to take on any adventure.
Work Faster and Longer
Save time storing and transferring data with the forged aluminum chassis that also acts as a heatsink to deliver higher sustained speeds.
Tough Enough to Take with You
Up to two-meter drop protection and IP55 water and dust resistance,(3) and a handy carabineer loop for securing to your belt or backpack all make this drive rugged enough to take anywhere.
Encryption for Extra Security
Help keep private content private with the included password protection featuring 256‐bit AES hardware encryption.(2)
Comparison Table
  Extreme PRO SD UHS-I Card | ||
|---|---|---|
Higher sustained speedsTransfer speeds up to 2000MB/s** read and write | Work straight from the driveFast transfer speeds up to 1050MB/s(4) read and 1000MB/s(4) write | Accelerate your workflowShot speeds up to 90MB/s, transfer speeds up to 170MB/s(5) |
Tough Enough to Take with YouIP55 and aluminum enclosure for added durability(3) | Work SaferIP55 rate for dust- & water-resistance(3) | 4K UHD Ready(6)Capture all the action with-out skipping a frame |
* 1TB=1,000,000,000,000 bytes. Actual user storage less
** Up to 2000MB/s read and write speeds. Requires compatible devices capable of reaching such speed. Based on internal testing; performance may be lower depending on host device, interface, usage conditions and other factors. 1MB=1,000,000 bytes.
(1) See official SanDisk website.
(2) Password protection uses 256-bit AES encryption and is supported by Windows 8, Windows 10 and macOS v10.9+ (Software download required for Mac, see official SanDisk website.)
(3) Based on internal testing. IPEC 60529 IP 55: Tested to withstand water flow (30 kPa) at 3 min.; limited dust contact does not interfere with operation. Must be clean and dry before use.
(4) Up to 1050MB/s read speed, up to 1000MB/s write speed. Requires compatible devices capable of reaching such speed. Based on internal testing; performance may be lower depending on host device, interface, usage conditions and other factors. 1MB=1,000,000 bytes.
(5) For 64GB-512GB: Up to 170MB/s read speeds, engineered with proprietary technology to reach speeds beyond UHS-I 104MB/s, require compatible devices capable of reaching such speeds. Write speed up to 90MB/s. Based on internal testing; performance may be lower depending upon host devices, interface, usage conditions and other factors. 1MB=1,000,000 bytes. X =150KB/sec
(6) Full HD (1920×1080) and 4K UHD (3840×2160) video support may vary based upon host device, file attributes and other factors. See official SanDisk website for more details.
| Weight: | 78 g |
| Dimensions: | 1.04 x 5.79 x 11.07 cm; 78 Grams |
| Brand: | SanDisk |
| Model: | SDSSDE81-4T00-G25 |
| Colour: | Black |
| Batteries Included: | No |
| Manufacture: | SanDisk |
| Dimensions: | 1.04 x 5.79 x 11.07 cm; 78 Grams |
Smaller and thinner than I was expecting. Very light and reasonable speed response when in use.
Not tested the 2m drop claim but looks like it would happily cope with being knocked off a desk.
I have 3 of these sandisk hd all great.
I travel all over the world with my work and these are tough solid state HDs with the little carry case, (optional extra) easy to keep and transport.
Didn’t like the two part cable it only works one way round!
The two arrow need to go together.
Thought I had los nearly two tb of data.
Ive used various memory sticks, and always use sandisk cards in my DSLR. that is what I have bought this device for to store my photos. safe, light, fast speeds all I want as an amateur highly reccomend.
Brilliant product I’ve used it extensively without issues. Very easy set up. Just plug into a USB slot and away you go. It’s very small, but also robust and seems very well made. Not expensive either for the quality and transfer speeds are quick.
Cable is a but small for dangling of edge of iPad when watching films but since the SSD is so light, theres no strain on the socke
It actually lives up to all that SanDisk claims of it. It is super fast. So far it has been very reliable. It is much smaller than I was expecting, but that is a good thing it isn’t a bulky normal-sized SSD, this makes it so very easy to carry with you, It ALMOST fits in my wallet. It is also USB C, rather than the traditional SSD weird USB, making it much more compatible I use it it on my iMac, MacBook, Windows 11 and my Linux server with absolute ease. I love it.
HOWEVER: It has one major flaw, it has no activity light, so it is very difficult to tell if you have plugged in properly and, much more importantly, when it has actually been fully ejected. If SanDisk ever does another version of this I hope they include an activity light (and make it small enough to fit in my wallet); then it will be perfect. Despite this, I recommend this SSD
The drive has a security feature by Sandisk which requires a password to unlock the drive, this is a good feature to have but the password box enters white text on a white background which makes it very annoying to use, error handling is terrible also.
It’s a shame because the physical device and performance is great, but they’ve shot themselves in the foot for a great all round product because the software part is annoying to use and makes the experience annoying.
This was a good buy as it’s let me move all of my old xbox games into it, making room for more Xbox Series X games to install on my console hdd. It does get hot, but that doesn’t seem to have caused any issues.
I posted a question about suitability with an IPad . It works really well but you need a lightening connector and a power bank . Once all linked it was straight forward . All my photos are now stored on the sandisk.
Literally plug and go. The speed is exceptional and I’ve even managed to test some of the temperature extremes and it seems perfect.
Very good SSD. High speed. Need to be used with type C 3.0 and good cable (20 Gbps) and higher for full speed.
Very expensive but you get what you pay for!
This tiny little thing is absolutely lightning fast! I use it purely for video editing and the transfer speeds are scary fast.
If you can afford this, this is the one to get.
This is a great affordable option and the file transfer was reasonable quick compared to other brands.
It’s small and it’s tough. The connector cable is completely detachable and short, but that’s quite an advantage. And it’s read/write speed is ridiculously fast. This product that is so good, I bought another.
Excellent drive I have 3 now It gets hot and that scares me but after a while I’m yet to have any issues.
Small, Good storage, but seldom reaches high R/W speeds, even connected to and to 11th gen I7 SSD laptop, so for me has some limitations, I have a 4tb standard drive with better read write speeds, but it is small form factor of this drive that makes it useful.
No issues with it apart from this.
This handles the transfers effortlessly and allows me to edit 4k footage with numerous effects applied, without dropping frames (Macbook Pro M1 Max) – all while working on the footage stored on the Sandisk SSD, not my internal SSD..
I’ve thrown a lot of work at it and it gets warm, but never hot. It’s small and convenient to carry, fits in a jacket pocket or a backpack pocket quite easily as it’s remarkably thin.
Can’t fault it.
It is also overheating when transferring large amounts of data for a while. I don’t know if that’s a problem or not but it could be if SSD is covered and not cooled down. When you touch it it is actually hot but you can still hold it without getting burned. I’m sure SanDisk know what they are doing and it is not a real threat to the device.
A small and fast 1Tb SSD. It comes with password protection using 128-bit AES encryption, though for many this can simply complicate things – but its there if you want it!
Not bad for the price [99] and would certainly buy another. Can’t comment on how reliable it is for the long term, but suffice to say it is one of several back-up devices I possess.
The replacement arrived and I started playing around with it.
It came formatted with ExFAT, as well, so be aware, if your device doesn’t support ExFAT, you just need to format it to something that can read it.
I got speeds faster than advertised, 1086MBps read (vs 1050MBps advertised) and 1038MBps write (vs 1000MBps advertised).
There was 1.81TiB of usable space on the 2TB version I purchased, which is absolutely expected and not false advertising as some of the comments suggest. (A quick note to those people, a TB is not the same as a TiB. The 2TB version is 2TB, which is ~1.81TiB, what it shows in the OS, albeit falsely labeled in Windows).
The leaflet suggests I can update the firmware on it, and should do that when I get it, however I am unable to find anything on the website about this and I assume it should be fine. It says it has hardware encryption capabilities, which uses the software provided but I never trust that stuff. I just formatted it to EXT4 in Linux (My OS of choice) and used Veracrypt, which you can use in Windows (and MacOS, I think), to encrypt my drive with FDE (Full Disk Encryption).
The drive is extremely responsive and I was able to fill it up with my files, and was able to read them all afterwards. It should be noted that whilst the first one got hot during operations, the second one seemed to run quite cool. I’m not sure why this is and I’m not going to complain either.
It seems to be quite solidly built and I do recommend it if you want to store lots of things, but it may be more expensive than a hard drive or the equivalent in M.2/NVMe. I got mine during Prime Day so it was quite cheap.
All in all I highly recommend it. It’s a solid drive and time will tell if it’s reliable. I will update this after a year or so.
Portability was a big factor, and hoping it would work with iphone (since there isn’t a lot of info on it)
The ssd itself works well however max transfer speed I’ve seen so far is approx 270 MB/S on magicbook pro using default hardware, nonetheless faster than my other HDD’s. I have noticed it heat up a lot in use, more than the 500gb version. In terms of wire / usb-c port connection, it feels a little flimsy and weak. The ssd has a front patterned surface and a rubber back both of which seem to attract dust.
Now onto iphone connection…I have tried both the 1TB and 500GB versions (with the supplied usb-c to usb adapter), both work with iphone (12 mini) via a genuine Apple Lightning to USB 3 Camera Adapter (make sure adapter is original as fake / defective wires have given me an unpredictable intermittent connection). In my experience the 1TB ssd loaded faster than 500GB on iphone.
Now Iphone allows you to view ssd contents BUT as soon you start saving iphone files onto it or tinkering with the ssd’s data you get the infamous ‘This accessory requires too much power’ sign. Even if you re-connect the ssd, once the sign appears once it keeps coming back. What worked to reverse it for me was actually connecting it to a laptop and deleting the iphone files saved on the ssd or the folders where data was altered. Another option is to scan for errors (whilst plugged into the computer), even if there are no errors I found that often the ssd starts working without needing ‘extra power’. Another option to try, this has given mixed results tbh is to connect the ssd to iphone whilst it is switched off then turn it back on and see if the sign reappears.
If you definitely want 2-way iphone-ssd use then you will need a power hub to power the hardrive (and also bypass the ‘…requires too much power’ message, or if none of the above options work to get rid of the message). I bought the ‘…RSHTECH 5 Port USB 3 Hub with 4 USB 3.0 Data Port + 1 Fast Charging Port Portable USB Splitter with 12V/2A…’ because it provided more power i.e 24W compared to similarly priced 5-port power hubs – so far so good! As a bonus iphone was able to read both ssds (1TB + 500gb) at once when plugged into the power hub.
In terms of folder load time there was no difference for me using a power hub vs none. I didn’t notice a difference in performance or predictability between an old iphone lightning cable vs latest lightning to usb-c cable. I have tried iphone (with ssd connected) plugged into a usb wall socket vs plugged into an apple 30w adapter, again no obv difference.
Another point to mention, with big folders around 90gb (raw files/4k videos) my iphone struggled to read the content despite loading for 20+ mins? The successful cut off for me has been around 65gb folder size max, anything larger definitely gets divided into smaller folders. I did notice some large 4k videos load slowly and freeze midway, but the ssd did let me save them directly on my iphone despite this so was able to view them better that way.
My Sandisk ssd-iphone experience so far (in summary):
Option 1 – viewing/saving ssd content on iphone -> no power hub required
Option 2 – deleting/altering ssd content and/or saving iphone content onto ssd -> power hub required
Hope that helps, I struggled A LOT to find info on iphone sandisk ssd connection so thought I’d share all of my recent findings.
On a sep note – the ssds worked absolutely fine with ipad Air 4th gen utilising it’s usb-c port so no adapter required. Literally a case of plug and play – and definitely a lot faster than on iphone.