Secure GSM

Professional protection of confidential data

In the age of the Internet both individuals and organizations need to protect their data and to keep and transfer them safely. Data protection and safe transfer from one device to another is a problem that is relevant to every sphere of activity, be it design, education, healthcare, finance, insurance and others.

To ensure the safety of confidential data in personal and business communication our drives have the following features:


3.5" USB3.0 Encrypted External Hard Drive


  • Material: Aluminium
  • Color: Silver, black
  • Capacity: 1TB/2TB/3 TB/ 4TB/ 6TB
  • Interface: USB 3.0
  • Standard: 3.5" SATA I/II/III Hard Drive
  • AES 256-bit hardware encryption
  • Onboard numeral keypad
  • No software required
  • USB3.0 super speed interface
  • Compatible with Windows, MAC OS X, Linux and Android systems
  • 6-32 digit password
  • Self-destroyed function for prevent brute force attempt
  • Size: 210 x 120 x 38mm

With AES 256-bit hardware encryption, SDISK-3500 keypad encryption Hard Drive can perfectly protect your confidential or sensitive information. The encrypted Hard Drive is only accessible when you input the correct password by integrated numeric keypad, that means it can prevent any hardware and software login attempts to hack your flash drive, even if “Chip off”. Support 6-32 bit digital password that means it can prevent attempts to hack your device by “brute force”. The USB3.0 interface makes the data transfer rate up to 5.0Gbps which is higher than 2.0 port ((USB 1.1 compatible). SDISK-3500 DOES NOT need any software or drives to be installed, supports Windows, MAC OS X, Linux, even Android system. Very small size for easy put in pocket to travel.


3.5 inch USB3.0 Encrypted External Hard Drive

All made of Aluminum material for great heat dissipation. Available in black and silver color.

3.5 inch USB3.0 Encrypted External Hard Drive

SDISK-3500 supports 3.5" SATA HDD, 1TB/2TB/3TB/4TB/6TB models available.

3.5 inch USB3.0 Encrypted External Hard Drive

AES-256 CBC (Cipher-Block Chained) realtime encryption/decryption. True hardware encryption function. Super easy, super secure.

3.5 inch USB3.0 Encrypted External Hard Drive

SDISK-3500 DOES NOT require any software or drives to be installed and is compatible with PC, MAC, Linux, Android and other systems. SDISK-3500 uses drag and drop encryption, plug and play ready and can be used with any off the shelf backup software.

3.5 inch USB3.0 Encrypted External Hard Drive

By onboard keypad, SDISK -3500 enables the user to unlock the drive with a 6-32 digit PIN when connecting to the USB port on your computer, tablet or mobile device. The embedded keypad prevents hardware and software key logging attempts to capture your password entered via the host system.

3.5 inch USB3.0 Encrypted External Hard Drive

Supports high-speed USB 3.0 port, the transfer rate up tp 5 Gpbs, 10 times faster than traditional USB2.0 drives.

3.5 inch USB3.0 Encrypted External Hard Drive

It can prevent any hardware and software login attempts to hack your hard drive, even if„chip off“

Name: USB 3.0 Keypad Encryption Hard Drive
Model: SDISK-3500
Material: ВHigh quality aluminium
Capacity: 1TB, 2TB, 3TB, 4TB, 6TB
Application: Encryption: AES Cypher-Block Chained mode
Encryption Keys: 256-bit Hardware
Hashing: 256-bit SHA
Interface: USB 3.0 port (compatible with USB2.0 , USB1.1)
Data transfer: USB 3.0 up to 5.0Gbps
USB 2.0 up to 480Mbps
System requirements: Windows 2000 / XP / Vista / Win7/Win8/10
Mac OS 10.2 or higher
Linux 2.4.2 or higher(such as Ubuntu, Android…)
Environmental requirements: Operating temperature: 5°C ~ 40°C
Operating humidity: 20%RH ~ 80%RH
Storage temperature: -20°C ~ 70°C
Storage humidity: 10%RH ~ 90%RH
Power supply: USB bus power 5V/900mA
Size: 21cm x 12cm x 3.8cm
Packing accessories: SDISK-3500 Encrypted 3.5" HDD

About us

Secure GSM was founded in 2015 with main activity in development, production, introduction, installation, tuning, testing, servicing and destruction of encryption (cryptographic) media, including sertified ones, designed for cryptographic protection of the information in its processing, storage and transmission through comunication channels.

Contact us

  • Address: Bulgaria, 7700 Targovishte,
    10"Panagyurishte"Str., BC-BI, office 6
  • Phone: +359 898 778 128
  • E-mail: