diskAshur M2, hands on: A sturdy and secure SSD, with a frustrating user interface


The transportable, protected and rugged diskAshur M2 will come in capacities ranging from 120GB to 2TB.

Picture: iStorage

Supplied in a sturdy carrying circumstance, the diskAshur M2 from iStorage is thinner and sleeker than previous designs and has its own sliding sleeve to defend the keypad from finding knocked although it truly is in a bag or pocket, as properly as to keep dust out of the USB 3.two Micro-B SuperSpeed data and ability port on 1 stop. 

There is certainly even a rubber gasket that helps make the whole matter water-proof when the sleeve is fitted (IP68, up to 30 minutes in one.5m of h2o) iStorage also statements it truly is shock and crushproof (up to two.7 ton) and we saw no mistakes right after dropping it off a couple of desks and tables in the office. 

Flash storage just isn’t likely to undergo the form of head crashes a tricky drive may possibly, but additional importantly you never want it to be simple to crack open up if an attacker needs to consider the form of components assault that includes disassembling the system (even though there are built-in protections from the common physical and monitoring assaults, and the parts are encased in resin). 


The diskAshur M2 is equipped with short USB-A and USB-C cables for system connection.

Picture: iStorage

The sizing of a modest bar of chocolate or a aspect mobile phone, the M2 feels significant for its sizing but is properly balanced you can stand it on 1 stop if it truly is not plugged in. But the USB-A and USB-C cables equipped are fairly short, so it truly is possibly likely to stop up flat on the table future to your system exactly where you can kind in the PIN when you want it. That system can be pretty much nearly anything with a USB port, such as Android, Chrome, thin clients and embedded units, as properly as Windows, macOS and Linux, simply because the components encryption indicates you never want to install any software program. You can even use the M2 as a boot drive. 

Former versions of the diskAshur experienced a built-in cable, and the datAshur USB stick required an adapter for cell or USB-C devices. Switching that for independent cables helps make the M2 additional flexible, but because USB Micro-B SuperSpeed connectors are not specifically prevalent you are going to want to have the right cable with you — earning the carrying circumstance additional of a necessity than a nicety. 

When it truly is unplugged, all the data is instantly encrypted employing AES-XTS 256-little bit components encryption (make guaranteed any data transfers are concluded first). The user PIN to unlock the drive to use it like a usual SSD can be seven to fifteen digits lengthy the program blocks uncomplicated repeats and sequential PINs and obtaining letters on the variety keypad indicates you can use a passphrase that is easier to try to remember than a string of quantities (we’d advise steering clear of the conveniently guessed recommendations in the handbook while). Even so, there’s a polymer coating so the keys never wear down and give attackers a hint. 

There is certainly a large vary of admin functions, from imposing the length of user PINs (and whether or not to have to have distinctive characters that use the Shift crucial) to setting how lengthy the drive stays unlocked when it truly is not in lively use (the default timeout is short more than enough to annoy most consumers). 

Both equally admins and consumers can flip the drive into read through-only manner — and if that is established by an admin, consumers cannot alter it, so you can use this for distributing material with no stressing that it will be unintentionally deleted, contaminated by malware or otherwise tampered with. 

If the user PIN is typed in wrong 10 situations in a row, it truly is instantly deleted, so you can established 1-time user restoration PINs to let individuals regain access to their data. All the previous diskAshur functions are nonetheless there, like the option of a system reset or a self-destruct PIN that deletes the data, encryption crucial and PINs so you can re-situation a formerly used drive to one more worker and ensure data deletion. 

But configuring those, or even generating user PINs, nonetheless requires a fiddly sequence of urgent several mixtures of change and lock keys on the system with several digits and looking at the 3-colour LEDs blink or convert stable in patterns that couple of individuals are likely to bother memorising. Even unlocking the drive as a user indicates urgent two keys, typing in the PIN, urgent one more crucial and then looking at the eco-friendly and blue LEDs flash for a couple of seconds. 

Even with the limitations of a numeric keyboard, we go on to locate this unnecessarily advanced and it truly is the most annoying part of iStorage’s otherwise valuable products. 


Best: average performance when copying a 12GB range of files. Higher than: better outcomes when dealing with significant sequential files.

Photos: Mary Branscombe / ZDNet

With a USB 3.two Gen one connection, the M2 can theoretically supply 370MB/s read through and create speeds, even though the encryption can sluggish that down. Copying a 12GB range of files showed fairly variable performance that did not get near to the theoretical maximum, but sent identical create speeds to a USB 3. flash drive (for comparison we used a Kingston DataTraveler Ultimate 3. Technology two). CrystalDiskMark showed closer to the theoretical speed with significant sequential files. 

But in use, disk performance just isn’t likely to sluggish you down — even though the drive settings may possibly. The short timeout restrict meant that equally the benchmarks and the significant file duplicate at first failed and necessary a Windows drive fix, with the drive light activity remaining on even right after the drive experienced disappeared from Windows Explorer. We found our examination device would lock right after a couple of minutes even right after we extended the timeout to the maximum 99 minutes, which was similarly annoying. 

You are also spending for the stability, with price ranges starting at £155 for the 120GB variation we seemed at the £515 2TB product. 


Picture: iStorage

The diskAshur M2 delivers a welcome mix of functions from iStorage’s previous SSD and USB stick designs: the 1-time PIN from before diskAshur designs and the protective protect from dataAshur. It is really also smaller, neater and additional rugged than before choices. But the interface continues to be opaque and occasionally disheartening, so build in time for training and user help.

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Maria J. Danford

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