SanDisk Extreme Portable SSD 4TB - Up to 1050MB/s Read Speeds (Older Model) | External SSD, USB-C, Compatible with PC, Mac, Consoles, IP65 Water+Dust Resistant, Up to 3M Drop Protection, AES Encryption

UPDATE: 1 month into ownership, I'm still very happy with the drive. However, it's randomly started to disconnect from my computer. I have a 1TB version of the exact same drive (that I use in a far more intense manner) plugged in right next to it for hours--this 4TB drive I only use for Time Machine backups. As the Romans said: caveat emptor! This little solid-state NVMe drive just blew me away once I plugged it in and started putting things on it. I honestly never even considered that a simple hard drive would be able to do that! This device is the data-heavy user-on-the-go's ultimate dream. No more do I have to lug around a laptop or find clunky (and difficult to use) cloud storage solutions when I want to travel with a big amount of data (think CLI and IDE cached files). Connecting to this is a breeze, and it's been simple to format them with all of the MacOS Sonoma's available file systems (albeit I've only tried with the various APFS versions). Data transfer speeds are next level, compared to my brand new (but old tech) spinning disk HDDs. I actually initially bought a 1TB drive, then immediately (same day) bought the 4TB version after using it for only a few minutes. I was able to back up my entire laptop using Time Machine and used space of ~1.3 TB (i.e. first-time backup) in less time than it took me to make and eat lunch. I wish I had timed it. Alternatively, my now-secondary Time Machine spinning disk HDD is still plugging away at an interval snapshot update nearly 2 hours after plugging it in. Honestly, I might never go back to spinning disks again. This thing fits in your pocket or book bag or wherever! The one drawback is that I've accidentally misplaced it a couple of times already just because it's so dang small.

So far so good!

After purchasing, I did see some articles online about poor reliability back in 2023. I assumed this would have been addressed by now. However, I left my disk connected overnight to do a large transfer of photos from a smaller SSD. I came back in the morning to find the disk had 'ejected incorrectly' and the transfer hadn't completed. I kicked the transfer off again and watched and fairly quickly an error appeared and the disk unexpectedly unmounted. It did this several times. Basically a totally unreliable product, I wouldn't trust this SSD to keep my precious photos safe (albeit I back up anyway). Returned product and will look for a Samsung or similar. DO NOT BUY!

Good drive overall, but not without a few frustrations. Performance is solid and it handles large files well, which is why I use it as my main drive for projects. Build quality also feels strong and durable, so it holds up well for regular use. The main issue I have had is occasional dropouts. It does not happen constantly, but when it does it can be frustrating, especially if you are actively working on projects. I have seen suggestions online about updating the firmware to fix this, but that process wipes the drive. If you are already using most of the storage, that is not a realistic option without having another drive to move everything onto first. Another thing to consider is the price. It is very expensive, especially for higher capacities like 4TB, so it is definitely an investment. Despite that, it still works well overall and I continue to use it as my main drive. It is just something to be aware of depending on your workflow. Overall, a fast and well built SSD, but with a few reliability quirks and a high price point to consider.

very fast ssd, it so tiny and portable, no wonder its expensive the quality is so so good. I use to save my editing work on mac. Thanks

Touch wood this has been very reliable, so far. Love the small size and weight making it no hassle to take around with other gear.

I have Samsung t5 and t7 ssds, which are themselves brilliant, but this Sandisk version is fantastic; small & neat, very very fast. Yes it is a bit expensive, and hopefully it will last a long time (I have a Samsung t5 1Tb for 5 years no problem so far). I think it is worth the money. Password-protect very easy to use and sensible.

This is a good piece of kit - it's reasonably fast in a compact and rugged package. However, the £550+ price tag (when I bought it) is hard to justify considering that there are faster drives at similar or even cheaper price. It makes for a very odd offering where by it's not cheap and it's not a performer either. If you want a cheap 8TB SSD drive, I would recommend the Crucial X10 which is both cheaper and has double the transfer speeds. If you need really fast storage I would recommend the Thunderbolt5 OWC Express 1M2 or the Envoy Ultra. The SanDisk is just not fast enough and somewhat overpriced...

Je l'utilise pour installer des jeux vidéo. Fonctionne parfaitement et il est très rapide. Très satisfait de mon achat.

Excelente producto, casi del tamaño de una tarjeta bancaria y con un espesor de menos de un centímetro, muy ligero y con una textura al tacto como si tuviera una funda de silicón. Me llegó a casa en menos tiempo de lo señalado (EUA a México) y sin ningún daño. Recomendable.

Denna SSD är utmärkt som extra disk till min MacBook mini som enbart har en 256 intern SSD-disk. Till skillnad från SanDisk Extreme PRO (som enligt en del användare rapporterat allvarliga fel på denna dyrare disk) är denna billigare SanDisk Extreme felfri.

Muy pequeño y rápido, para un archivo de x tamaño, El espacio ocupado en el disco SSD es mayor al al ocupado en un disco de platos.

Super achat et conforme....je recommande