HS256 S3 High-Security external Hard drive USB 3.0

HS256S3 externe Festplatte 500GB HDD verschlüsselt mit Hardware Verschlüsselung, Smartcard und PIN-Eingabe, BSI Zertifizierung + Empfehlung, schwarz

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  • DG-HS256S3-500S
  • 4260111199567
External high-security hard disk HS256 S3 Professional solution for authorities and... more

External high-security hard disk HS256 S3

Professional solution for authorities and companies

The portable high security hard disk HS256 S3 enables data protection compliant storage, sending and archiving of sensitive and personal data at authorities and companies. It's faster, safer and more robust than any other HS hard drive.

The elegant and robust 2.5-inch aluminum housing protects against mechanical influences and electromagnetic waves. The USB3.0 connection ensures fast data transmission during reading and writing.

The BSI certification confirms that you can entrust this hard drive with your particularly sensitive data. In addition, by using this hard drive you fulfill the strictest requirements of the Federal Data Protection Act (BDSG) and the European Data Protection Regulation (EU-DSGVO) with regard to the secure storage and storage of personal data.

The information stored on the HS256 S3 is protected from unauthorized access, for example if the hard drive is lost or stolen, or in the case of logical or physical attacks, in view of the confidentiality of the information.

The Digittrade HS256 S3 ensures the confidentiality of the data through the following security mechanisms:

  • Encryption
  • Access control
  • Management of cryptographic keys

Security mechanisms and special features:


 The encryption module integrated in the security housing performs a complete encryption of the hard disk.


Each stored byte and sector on the disk is encrypted with 256-bit Advanced Encryption Standard (AES) in XTS mode using two 256-bit cryptographic keys.

It also encrypts all temporary files and areas that are often overlooked by encryption software.


Access control

The access control is based on the principle of "owning and knowing": the user must have a suitable smart card and the correct PIN to access the data.


 The smart card is automatically locked and unusable as soon as the 8-digit PIN has been entered incorrectly eight times. The cryptographic keys on the smart card are irrevocably destroyed. The data on the hard disk will continue to be stored securely. The access to this data can then be done with the second smartcard and the valid PIN.


Encryption key

The user can use the crypto keys themselves:

  • Generate
  • Change
  • Copy
  • Destroy

Management of the cryptographic keys

The two 256-bit crypto keys are generated on the smart card. For this, the certified chip card has a very intelligent DRG3 random number generator.

Subsequently, the keys are stored on the smart card separately from the hard disk and transferred only for encryption or decryption of the data to the crypto module of the hard disk.

The user can copy these keys to the other smart cards and destroy them if necessary.


Smart Cards

As standard, the hard disk is supplied with two Java-based smart cards NXP J2E081 JCOP v2.4.2 R3 EAL5. They are certified by the Federal Office for Information Security (BSI) according to EAL5 and enable the creation, copying, modification and destruction of cryptographic keys. Key management is performed on the smart card independently of a PC with the support of the DIGITTRADE HS256 S3 applet.

In case of manipulation attempts of any kind, the crypto keys on the smart card are destroyed and the smart card is automatically terminated irrevocably. The data on the hard disk is retained and can be accessed and edited with the help of the second smart card after entering the correct PIN.


Management software Smartcard Manager 2

The DIGITTRADE Smartcard Manager 2 is available separately and gives you a centralized view of all your DIGITTRADE High Security hard drives, smart cards and cryptographic keys. With this comprehensive management software, you can completely capture these high security hard drives. By displaying a company structure, employees, departments and locations can be assigned to the respective information. This allows you to add the hard disks and smart cards to the respective employees and departments. Already existing information can be updated. 

You also have the possibility to manage your smartcards directly on your PC. The smart cards can be synchronized, cryptographic keys can be newly created, changed and deleted, and the smart card PIN can be changed.

Further information is available at info@digittrade.de.


Built-in hard disk

The built-in SATA hard drive in 2.5 "format makes the mobile data safe small and handy. The data transfer and the power supply via USB as well as the hardware encryption allow the use of the storage medium independently of the operating system.


Supported Operating Systems

The hard disks are independent of operating systems and bootable. This allows not only the storing of the data but also operating systems and programs on these hard disks. This allows the HS256S to be used on all devices with USB support.

Certification: BSI CC
Encryption: AES - 256, AES 256 Bit im XTS Modus
Interface: USB 3.0
Authentication: Smartcard + PIN
Available downloads:

Technical details

Capacity: 500 GB
Read-/Write speed: 90 MB/s
Compatibily: all Windows systems, Linux, MAC OS X


Security features

 256-bit full-disk hardware encryption to AES in XTS mode with two 256-bit real-time keys

 2-factor authentication via smartcard and 8-digit PIN code

Administration of cryptographic keys by the user (creating, changing, copying and destroying)

Storage of AES keys on the smart card, separate from the hard disk and chassis

Access protection to the smart card through an 8-digit PIN

Encryption chip certified to FIPS-197

Smartcards NXP J2E081 JCOP v2.4.2 R3 BSI certified to EAL5


No restrictions on reading and writing speed

Independent from the operating system

Supported operating systems: Windows, Linux and Mac


 USB 3.0 backward compatible

3-year manufacturer's warranty


Dimensions and weight

Product dimensions: 149mm (L) x 85mm (W) x 21mm (H)
Weight: 320g incl. hard drive

Packaging dimensions:

183m (L) x 119mm (W) x 96mm (H)

Packaging weight:



DIGITTRADE HS256 S3 HIGH SECURITY 500GB SSD, 2 smart cards type NXP J2E081 JCOP v2.4.2 R3 EAL5, USB- cable, manual, hard case