diskAshur DT

  • USB 3.0 Desktop Hard Drive
  • Capacities up to 8TB*
  • XTS-AES 256-bit hardware encryption – no software required
  • OS & Platform independent



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All above products are available in stock and are delivered within 1-2 working days in Mainland UK.
For all other international deliveries time is dependent on your location.

  • Overview
  • Features
  • Specification
  • Reviews
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  • Hard Drive Comparison
  • FAQs

What is diskAshur DT?

The iStorage diskAshur DT is a portable hardware encrypted hard drive with PIN code access and capacities of up to 8TB.
The diskAshur DT utilises military grade XTS-AES 256-bit hardware encryption, which encrypts all data stored on the drive in real time. Should the drive be lost or stolen, the user can rest assured that all data held on the drive is safe and cannot be accessed by any unauthorised third party, even if the hard drive is removed from its enclosure.

Why the diskAshur DT?

Did you know that millions of flash drives are lost or stolen every year and this figure is rising. Have you ever considered the impact of losing your non-encrypted USB flash drive? Your data would be at the mercy of anyone who stumbles across it.
Information Commissioner's Office (ICO)
The Information Commissioner’s Office (ICO) now has the power to fine businesses and government bodies up to £500,000 for serious breaches of the Data Protection Act. This includes the loss of an unencrypted USB flash drive that contains client data. The ICO has been very clear in advising businesses and government bodies to encrypt all data that workers access, they also recognise that data which is encrypted and lost or stolen is not vulnerable to compromise.
General Data Protection Regulation (GDPR)
The European Union will soon have the power to fine companies €20 million or 4% of their annual turnover if they are found to be in breach of the new General Data Protection Regulation (GDPR). The forthcoming legislation compels anyone who holds data on EU Citizens to implement adequate security measures to protect data from loss or theft.
Loss of confidential data can have a devastating effect on both businesses and consumers. It could lead to a hefty fine, the downfall of a business, embarrassment, job losses and adverse media attention. The iStorage diskAshur DT can protect you against all of this.

What is the difference between software and hardware encryption?

Software encryption:
  • Complex passwords can be cracked easily and quickly with a Brute Force Attack
  • Simple password cracking software is readily available on the internet, often free of charge
  • Software encryption is vulnerable to key loggers – where every key pressed is logged in either a software or hardware key logger
  • Software encryption can be corrupted by viruses
  • Software encryption is much slower when compared to hardware encryption
  • Software encryption needs to be installed on each computer that the external storage device is used on
  • Software encryption shares computers resources to encrypt data with other programs on the computer, making it only as safe as your computer.
Hardware encryption:
  • The diskAshur DT cannot be brute force attacked
  • The diskAshur DT is not vulnerable to keyloggers as the PIN is entered on the unit rather than the keyboard
  • The diskAshur DT does not require any software and can be used with Windows, Mac, Linux, Chrome, Android, Thin Clients and Embedded Systems.
  • Encryption is performed in real-time thus there is no speed degradation
  • No software or drivers are required

Utilizes Military Grade FIPS PUB 197 Validated Encryption Algorithm

Featuring military grade 256-bit XTS-AES hardware encryption, the iStorage diskAshur DT seamlessly encrypts all data on the drive in real-time, keeping your data safe even if the hard drive is removed from its enclosure.

Software Free Design – With no admin rights to contend with the IStorage diskAshur DT is a breeze to implement

With no software installation required for setup or operation and the ability to run on any platform, the iStorage diskAshur DT provides stress free deployment in corporate environments. Its Administrator Feature allows enrollment of up to five unique user ID’s and one administrator, making it a useful business collaboration tool.

Super fast USB 3.0 Connection – Data transfer speeds up to 10X faster than USB 2.0

With a super speed USB 3.0 interface, you can now access your files faster than ever before. The iStorage diskAshur DT is also backwards compatible with USB 2.0 and 1.1 ports. testing content.

Data at Rest Protection

All data and encryption keys are always encrypted while at rest.

Sealed from Physical Attacks by Tough Epoxy Coating

In addition to encrypting the data and the encryption key itself, the iStorage diskAshur DT adds another barrier between your data and a hacker. The encryption chip and circuitry of the iStorage diskAshur DT are completely protected by a super tough epoxy compound, which is virtually impossible to remove without causing permanent damage to the electronics. This barrier prevents a potential hacker from accessing the encryption circuitry and launching a variety of potential attacks.

Brute Force Self Destruct Feature

The iStorage diskAshur DT uses a three pronged approach to protect against a Brute Force attack. The first step is to deny access to the drive until the drive can verify the user PIN. After several incorrect attempts the drive will lock itself, requiring the drive to be plugged in again to input a PIN. This feature blocks automated attempts to enter PIN numbers. Lastly, after a predetermined number of failed PIN entries, the diskAshur DT assumes it is being attacked and will destroy the encryption key and lock itself, rendering the data useless and requiring a total reset to redeploy the iStorage diskAshur DT.

Auto Lock feature

The iStorage diskAshur DT auto lock feature enables you to set the unattended drive to lock after a pre-determined amount of time of your choosing.

Wear Resistant Key Pad

Designed with protection in mind, the entire iStorage family incorporates ‘wear resistant’ keypads to hide key usage and avoid tipping off a potential hacker to the commonly used keys.

VTC Technology

Protection against hacker attempts doesn’t stop with Brute Force. Incorporated into the diskAshur DT’s electronics is the iStorage’s Variable Time Circuit (VTC) technology, working to thwart “timing attacks” aimed at accessing the drive by studying the behaviour and infiltrating the diskAshur DT's electronics.

High Quality Aluminium, Heat Dissipating Enclosure

The iStorage diskAshur DT robust design has a solid aluminium enclosure which is ideal for whisking away heat from the rotating drive inside.
  • Secure access with personalised 6-16 digit PIN
  • Complete security with Real Time 256-bit Military Grade XTS-AES Hardware Encryption
  • No software required – no Admin Rights required
  • Rugged and portable design
  • Compatible with any OS – Windows, Mac, Linux, Chrome, Android, Thin Clients & Embedded Systems
  • Brute Force Hack Defence Mechanism
  • Set a self-destruct PIN that when entered deletes all encryption keys and renders all data stored on the drive as inaccessible
  • Capacities of 1TB, 2TB, 3TB, 4TB, 6TB & 8TB
  • Encrypts all data on the fly, as fast as any USB 3.0 hard drive
  • USB 3.0 interface
  • Admin feature – set 1 Admin and up to 4 user PIN codes
  • Utilises FIPS PUB 197 Validated Encryption Algorithm
  • Guaranteed with 2 year warranty
Data Transfer Rate USB 3.0 - up to 5 Gbps
Power Supply 12V AC Adapter
Interface USB 3.0 - backward compatible with USB 2.0/1.1
Buffer size 8 MB
RPM 7200 RPM on 1,2,3 and 4TB | 5400 RPM on 6TB | 5900 RPM on 8TB
Average seek time 12 ms
Shock - non operating 1000G 1ms
Shock - operating 300G 2ms
Dimensions 4.5” X 7.2” X 1.5”
Weight 1160 grams apprx. (weight based on a 3TB diskAshur DT - other capacities may vary in weight)
Warranty 2 year limited
Approvals FIPS PUB 197 Validated, FCC & CE
Operating System Compatibility Windows, Mac, Linux, Chrome, Android, Thin Clients & Embedded Systems
Ordering Information iStorage Part Number: IS-DA-256-xxxx (xxxx=drive size in GBs)
*One gigabyte (GB) = one billion bytes; accessible capacity will be less and actual capacity depends on the operating environment and formatting.
Coming soon...
We strongly recommend that you carefully read the User Manual, shipped with the device and/or available for download on our website before contacting us for technical support.
There are no ‘Back Doors’ to our products, we cannot retrieve a forgotten PIN or retrieve any data off the drives unless the PIN is known.
Below are answers for the most frequently asked questions:
You can use it in one of the following ways:(1) Change the Admin Password or create a User Password:

  • Connect the iStorage diskAshur DT to your computer’s USB port and then connect the supplied power supply to the mains, you will get a solid RED light.
  • Hold down the 0 & Padlock keys for 5 seconds, RED light flashes.
  • Enter the Admin Mode with 123456 & Padlock (default administrator password), the BLUE light then appears signalling the iStorage diskAshur DT is in Admin mode.
  • You are now able to change the Admin Password or create a User Password in Admin mode.

Directly enter the User Mode to start using the iStorage diskAshur DT:

  • Connect the iStorage diskAshur DT to your computer’s USB port and then connect the supplied power supply to the mains, you will get a solid RED light.
  • Enter the Admin code 123456 & Padlock (default administrator password), now GREEN light appears and iStorage diskAshur DT is ready to use.
Any new Admin or User code that is setup has to be a minimum of 6 digits and be no more than 16 digits long (6-16 digits).
Use your Admin PIN to enter Admin Mode, and then create another User PIN in Admin Mode.
There is no other way to retrieve the Admin PIN except a complete reset of the iStorage diskAshur DT. After a complete reset, all data will be lost and you will need to initialise, allocate and format the iStorage diskAshur DT manually. You then will be able to use the default Admin Password 123456.
You need to initialize, allocate and format the diskAshur DT drive manually. For more information, refer to “Initialising and formatting the Hard Drive after a complete reset” in the product manual.
No, this is a Windows limitation, you must use the Admin account to initialise and format the iStorage diskAshur DT.
As a full disk encryption product, the iStorage diskAshur DT can never be used without a password.
The iStorage diskAshur DT uses AES 256-bit algorithm.
You can change it only in the Admin Mode. In the User Mode, the User PIN which has the same digits is created in the Admin Mode cannot be changed or deleted.
Ensure that you have administrator privileges for your computer. You can use only the administrator account to initialise partition or format the iStorage diskAshur DT in the User Mode.
The Administrator feature allows enrolment of up to FOUR (4) unique User ID’s and ONE (1) Administrator. If a User forgets their PIN, the diskAshur DT can be unlocked using the Admin PIN.
No, since the iStorage diskAshur DT does not require any software to be installed and the encryption/decryption is performed in Hardware on the drive itself, “Admin Rights” are not required.
You may have entered an incorrect PIN too many times and have triggered the Brute Force Attack Protection; you can reset this counter by referring to the `Brute Force Attack Protection` section of the iStorage diskAshur DT manual.
The issue you are having is being caused by power saving settings on your computer so please see below and make the appropriate changes to your computer and this will stop the iStorage diskAshur DT from locking.

Microsoft Windows

Doing the following will prevent Windows from switching off the diskAshur DT, go to `Control Panel` & `Power Options`, the easier option is to disable power saving which means stopping the computer from `Sleeping` see below;
In addition go into Advanced Settings in Power Option to disable the following:

  • Ensure the computer is set to sleep: Never (as above)
  • Turn off hard disk after: 999999 Minutes
  • USB selective suspend setting: Disabled

This will keep any iStorage hard drive connected to the computer continuously on.

Note: For Windows 8.1 users You will need to install a Windows update (KB2919355) as well as follow the steps above. Please go to this link and choose Method 2: http://support.microsoft.com/kb/2919355.
Once the download option appears select KB2919355 and then download and install.

For more detailed information and required fix please go to our support page, under the tab Firmware Updates and download Win8.1 USB suspend issue folder.

Apple Mac

Drives keep locking after 5-10 minutes on the Macs.
This will be due the Mac’s power saving as there is a setting to switch off hard drives that are idle after a fix period of time see below.

The settings in Energy Saver preferences affect what happens when your Mac is left unattended for a period of time that you specify.

Disable Put the hard disk(s) to sleep when possible to prevent the diskAshur DT going to sleep and not locking. You will also need to stop the computer sleeping to prevent the diskAshur DT from locking.

The only way to prevent this is by changing the power settings (Windows computers) of the computer so that it only switches of the monitor on hibernation/sleep and keeps power to hard drives and USB. On Apple MAC computers going to the power settings in `System Preferences` and clicking the do not suspend USB will keep the drive alive even if the MAC goes into full hibernation
You must use the supplied Power Supply (PSU) to ensure power to the iStorage diskAshur DT.
You must use the supplied Y-cable to ensure power to the iStorage diskAshur DT.
To make the iStorage diskAshur DT universally compatible with all the most common Operating Systems requires the drive to be formatted using the FAT file system. This is done by using `Disk Management` in Windows, `Disk Utility` on MAC OS/x or MKFS in Linux. in Windows and Disk Utility on MAC OS/x or MKFS in Linux.


BadUSB is a theoretical exploit that was presented by SR Labs at the Black Hat conference in August of 2014. SR Labs demonstrated a vulnerability in one USB device that allowed malicious code to be programmed into the USB controller through a firmware update process.
The attack described is very sophisticated and in the case of iStorage products would require advanced knowledge of our USB controller, a leaked version of our firmware, the programming tool to update our controller, the password used for our programming tool, and an in depth understanding of the device’s functionality, etc.
According to SR Labs, the failsafe method to eliminate this threat is to simply disable the ability to update the controller’s firmware. Many of iStorage devices shipping today, including all of our USB 3.0 security products already have the firmware locked which prevents field updates to the USB controller.
As a continuous improvement, iStorage is locking down the firmware on all USB controllers used in iStorage devices to safeguard against this vulnerability. We recommend checking our website periodically for notices regarding BadUSB and Security Updates.


Your PC has a small bug that is called the USB Selective Suspend.  This error first occurred with Windows 8 and rolled over with Windows 10 and server 2012 R2.  This bug stops the windows update service from fully installing the Vendor ID and Product ID for the iStorage product into the windows registry.  This is vital information for the registry to have and stops the devices from disconnecting after a set amount of time.

We have contacted Microsoft about this matter and they have provided a fix for this issue.  It can be downloaded directly from this link HERE.

Please unzip the contents of this file and extract to your desktop.  Please follow the instructions on page 2 of the PDF

* Some of the listed capacity on a diskAshur DT drive is used for formatting and other functions and thus is not available for data storage. As such, the actual available capacity for data storage is less than what is listed on the products.