iStorage DiskAshur Pro 3: 30-second review
Specs
Capacities available: 512GB, 1TB, 2TB, 4TB, 8TB, 16TB
Size: 131 x 83mm x 20.8mm
Weight: 257g (2TB)
Enclosure material: Tamper-proof epoxy casing
Connector: USB 3.2 Gen 1
Technology: AES-XTS 256-bit hardware encryption
Warranty (years): 3
Rated R/W speeds (MB/s): 448MB/s read, 444MB/s write
Software bundle: Nero BackItUp (1-year license), iStorage DriveSecurity
The iStorage DiskAshur Pro 3 is essentially an easy way to keep all your digital data safe, whether personal or for business, albeit at a cost. The design is reminiscent of a traditional safe keypad, and the way it works isn’t too far removed. Once set up with admin and user passcodes or passwords, you can be assured that the only way back into the ample 2TB of storage is with the correct codes.
The passcode protection is at the hardware level, and iStorage has built the small drive to withstand brute force attempts to access it, both physically and through software. If someone does find a way to hack their way in, then there are options to erase all data if unauthorized access is attempted, essentially meaning that this drive offers one of the most secure data drive options out there.
When it comes to software protection, the drive is safeguarded by AES 256-bit encryption with FIPS 140-3 validation. This security is coupled with a rugged, tamper-proof casing that will help to ensure your data stays safe, although it’s also worth pointing out the while this case is tough it isn’t waterproof.
Reflecting the drive’s security, the build and design all reflect the nature of this SSD. However, in terms of size, it’s only slightly larger than other 2TB portable SSDs on the market and shares a similar USB 3.2 Gen 1 connection. This connection enables quoted data transfer speeds of up to 448MB/s, and in our benchmarking tests, the read speeds we registered weren’t too far off that mark.
While speed is important, with the drive enabling access at speeds in excess of 400MB/s through our test, this is relatively slow for an SSD, however, that’s more than enough for most documents you want to keep secure. With a decent 2TB of storage space, there should be ample room for a business’s corporate documents and any other digital data that needs to be kept secure, and there are options for a larger capacity if your budget allows.
It may not be the best portable SSD we’ve tested when it comes to speeds, but whether it’s for business, personal use, or as a drive you’ll be taking with you but need to keep secure, the iStorage DiskAshur Pro 3 is one of the smallest and most secure options out there.
iStorage DiskAshur Pro 3: Price & availability
The iStorage DiskAshur Pro 3 (2TB SSD) is priced at £660. It is available directly from iStorage and includes a semi-hard protective case, USB Type-C and Type-A cables, and a 3-year warranty. The drive is available for purchase in several storage capacities.
iStorage DiskAshur Pro 3: Design & build
The DiskAshur Pro 3’s build quality and design completely reflect its intended use as a secure portable SSD. First, the drive’s size, at 131 x 83mm x 20.8mm and weighing 257g, makes it ultra-portable and easy to stash in a physical safe if needed. Like other portable SSDs, its small size and weight make it easy to carry, adding little bulk or weight to any bag you might be using. The actual size of the drive is marginally larger than a standard 2.5″ portable SSD, although only by a bit, due to the added protection of the case.
Aside from the slight increase in physical dimensions, the main feature that sets this drive apart is the keypad on the front, which has a standard 12-key layout with numbers 0 to 9, along with a shift and lock key. Different key combinations essentially enable you to unlock and access various functions and features.
Alongside the keys are three LED lights that let you gauge exactly what is happening and enable you to set admin and user passwords. It’s a very analog approach and enables the drive to be completely independent from the need for a computer, aside from the power draw to the connected device until it’s unlocked.
The only other visible physical features are the USB Type-C port on the back, which handles all data transfer, and a Kensington lock, which enables it to be physically secured to a desk with an appropriate cable.
Internally, the drive’s construction ensures durability with a tamper-proof epoxy enclosure that prevents physical access, essentially if you try to break it apart the epoxy, as it’s removed will inevitably damage the drive. The design also features IP56 protection, which means that drive is dust- and water-resistant, allowing it to withstand more than most.
iStorage DiskAshur Pro 3: Features
The DiskAshur Pro 3 is designed with security as its primary focus, and every feature of this compact portable SSD reflects that. Starting with the physical keypad on the front, it’s designed to allow you to enter PINs ranging from 8 to 64 digits in length to gain access. Through the setup process, which is carried out using combinations of button presses, you can protect against brute force lockouts and set self-destruct PINs. You can also enable backlit illumination for the keypad to use in low-light environments. Additionally, the drive allows for different PIN setups, including admin, user, and one-time pass, offering plenty of flexibility in how the drive can be used.
The drive’s physical features showcase its security credentials, which are backed by its successful evaluation and issuance of CAVP certificates, which demonstrate compliance with the latest U.S. government computer security standards for cryptographic modules. These CAVP certificates include Library—Certificate A5501, EC Library—Certificate A5502, RNG Library—Certificate A5500, and Entropy Source Certificate E198. Essentially, it meets very high-security standards, including those government accreditations. Further adding to its secure credentials, it features military-grade FIPS PUB 197 validated AES-XTS 256-bit hardware encryption.
In addition to the technology that protects the data, the drive itself is encased in a durable epoxy resin layer, which makes it nearly impossible to remove the drive without breaking it apart. A feature that will appeal to many is the ability to format the drive in native file formats for different systems, including Windows, macOS, Linux, as well as others. You can also configure the drive to be bootable for Linux or other operating systems. To ensure maximum compatibility, the drive comes with a USB Type-C connector, and the protective semi-hard case includes both Type-C to Type-C and Type-C to Type-A cables.
While the drive isn’t built for speed, the USB Type-C connection ensures decent transfer rates, with speeds up to 448MB/s. Once set up, there are plenty of options and protections, including a brute force hack defence mechanism that allows 10 consecutive failed attempts to access the drive before all data is erased. For access, you can set up user, admin, and one-time access, with the option for a self-destruct PIN that will erase the full content of the drive if entered.
Looking at a few of the more physical features of the drive, it includes a backlit keypad that can be switched on or off as needed. The keys themselves are made from ultra-robust, wear-resistant epoxy, ensuring their longevity. It’s also worth highlighting that while the drive is rugged, it isn’t waterproof but is IP65 certified for dust and water resistance.
When it comes to more advanced features, the drive can be configured to be write-protected, allowing the contents to be viewed but not altered or removed. Additionally, you have three encryption options: AES-ECB 256-bit, AES-CTS 256-bit (default), and AES-CBC 256-bit.
iStorage DiskAshur Pro 3: Performance
Benchmarks
CrystalDiskMark, Read: 439.46MB/s Write: 414.62MB/s
AJA, Read: 400MB/s Write: 388MB/s
ATTO, Read: 420.66MB/s Write: 397.14MB/s
AS SSD, Read: 403.14MB/s Write: 382.19MB/s
The main feature of this drive is security, but speed is also of interest. With SSD technology and an ultrafast USB Type-C 3.2 Gen 1 connection, the speeds are relatively decent, though not groundbreaking. In our benchmarking tests, the drive consistently produced results around 400MB/s read and 250MB/s write. While these speeds would be restrictive for any creative use as a working drive, the fact that it offers a huge 2TB of storage means that, if you have client work that needs to be kept secure, it will still back up your content considerably faster than an HDD, even if it takes a bit longer than a standard SSD.
During testing, the drive was carried around for a week in a backpack along with other gear, though always in the protective semi-hard case included with the purchase. The combination of the case, the robust build of the drive, and the solid-state nature of the SSD meant that this test for durability was handled by the drive with ease, as was leaving it on a table during a light rain shower.
When it comes to write speeds, and considering that this is primarily a secure drive rather than one built for outright performance, transfer rates of close to 400MB/s are decent enough as a storage device and good for a bit of light HD video editing if needed.
On a PC laptop, the drive’s performance is solid with no issues. However, on a Mac, the drive can randomly disconnect. In the box, there is a set of instructions that explain how to work around this issue. While for the most part this works, with Apple Silicon and macOS Sequoia, the workaround sometimes required a restart after each time the drive was connected.
The main focus of this drive is security, and in that regard, it is impressive. While for single users the keypad access is simple (essentially functioning like a digital safe), one of the most interesting features is the ability to set up multiple users and one-time users.
This is done through a series of button presses, with confirmation provided by the three lights illuminating in different ways. You follow the instructions, wait for the lights, and proceed. Through various keystroke combinations, you can set up initial admin access, user access, and even one-time access.
This is great for businesses that need to provide sensitive data to their workforce. An IT department can set up admin and user access, and the drive can then be sent out with the content for employees to use. You can, if needed, make the content read-only, so the user can access the content but cannot update it, which is another handy feature.
Additionally, the drive allows you to program one-time access, where a PIN is created and the user can access the drive only once before the PIN becomes void and the drive locks again. It’s all very secure, and as long as you take your time to follow the instructions, it’s relatively easy to set up.
In terms of security, the way the drive works is quite interesting. Due to the encryption, even when connected, the drive won’t do anything. You can check the attached drives, and your computer will show nothing is attach—even if you attempt to access the drive using software designed to decrypt encrypted drives, it remains invisible. Only when the correct code is entered on the keypad does the drive unlock and connect, making it incredibly secure and well beyond any software solution that we have access to.
While the drive may not be the fastest SSD on the market, at 400MB/s it’s still fast enough for most tasks. So if you need to use the drive for additional storage for image or video editing, or even for running apps, it will enable you to do so.
In terms of real-world performance, the drive is impressive—fast considering its intended use and, most importantly, exceptionally secure.
Should you buy the iStorage DiskAshur Pro 3?
The iStorage DiskAshur Pro 3 is completely focused on keeping your data safe, and while the drive isn’t the fastest in terms of SSD performance, it’s still fast enough for most processes. The security level is impressive, and in testing with all the software we had at our disposal, including EaseUS, the drive remained locked and impenetrable. The fact that it doesn’t even mount or attempt to mount before the correct code has been entered makes the usual inroads that software allows void. This truly highlights that this is an ultra-secure drive with military-grade encryption, PIN authentication, and a tamper-resistant design. Of course, this level of security comes at a cost, but if you need your files to be secure, then this is the price you’ll have to pay.
| Row 0 – Cell 0 | Row 0 – Cell 1 | Row 0 – Cell 2 |
| Value | High-end data security comes at a high price | 4 |
| Design | Rugged, tamper-proof design with wear-resistant keypad | 5 |
| Features | Comprehensive security features, including self-destruct and PIN options | 4.5 |
| Performance | Decent speed for an encrypted drive, superb security | 4.5 |
| Total | If you need to protect your data, then this is the drive | 5 |
Buy it if…
Don’t buy it if…
For more storage, we reviewed the best external hard drives and best external hard drive for Mac.
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