iStorage diskAshur DT hard disk review

With a PIN number security system and 256-bit AES encryption this 3TB hard disk is as secure as they come - but is it worth £299?

The drive is easy enough to use when it's unlocked and initialised and the PIN number isn't the only security feature included. Mechanisms are in place to prevent brute force attacks, with these unsophisticated yet common hacking methods stopped in their tracks.

There's also an automatic encryption feature. Any data placed onto the device is kept protected even if the hard disk is compromised.

Plain Design

iStorage has the bases covered when it comes to the drive's physical profile, too. It's a plain-looking device, but it's very much function over form. We've never seen an external hard disk as strong as this one, with no give found in its sturdy metal chassis. With its strength and matte finish, the diskAshur DT will be able to withstand the toughest office environments.

The drive weighs 1.13kg, putting it in laptop range, and making it heavier than other storage devices on the market, but it is still portable.

iStorage diskAshur DT - Back

The device weighs in at 1.13kg and requires a power supply

On the rear is a USB 3.0 socket, which is now the standard for USB devices, PCs and laptops. It comes with a range of enhancements over the previous USB 2.0 standard, including a huge increase in bandwidth.

Transfer speeds can now reach a theoretical maximum of 5GB/s, whereas USB 2.0 hit a ceiling of 480Mbit/s. USB 3.0 also has two data paths so content can be sent and received simultaneously. The interface is capable of sending more power than its predecessor, although the diskAshur DT still needed an external power supply.

Mike Jennings


Mike Jennings has worked as a technology journalist for more than a decade and has been fascinated by computers since childhood, when he spent far too long building terrible websites. He loves desktop PCs, components, laptops and anything to do with the latest hardware.

Mike worked as a staff writer at PC Pro magazine in London for seven years, and during that time wrote for a variety of other tech titles, including Custom PC, Micro Mart and Computer Shopper. Since 2013, he’s been a freelance tech writer, and writes regularly for titles like Wired, TechRadar, Stuff, TechSpot, IT Pro, TrustedReviews and TechAdvisor. He still loves tech and covers everything from the latest business hardware and software to high-end gaming gear, and you’ll find him on plenty of sites writing reviews, features and guides on a vast range of topics.

You can email Mike at, or find him on Twitter at @mikejjennings