Portable Hard Drives

StoreJet 25M3


Transcend StoreJet Slim M3S 2.5″ 2TB Portable Hard Drive  ruggedized external hard drive combines supreme shock-resistant qualities with the USB 3.1 Gen 1 interface, allowing for ultra-fast file transfers and the highest level of anti-shock protection.


Lightning-fast transfer speeds


The Transcend StoreJet Slim M3S 2.5″ 2TB Portable Hard Drive is equipped with the USB 3.1 Gen 1 interface, providing lightning-fast transfer rates of up to 5Gbps.


RC SJ25M3 feature 01

Excellent anti-shock protection


TheTranscend StoreJet Slim M3S 2.5″ 2TB Portable Hard Drive  features a three-stage shock protection system that meets US military drop-test standards to fully protect data stored on the drive. The three-stage shock protection system includes a silicone rubber case, an internal shock-absorbing suspension damper, and a reinforced hard casing.


RC SJ25M3 feature 02

Two-color options


The Transcend StoreJet Slim M3S 2.5″ 2TB Portable Hard Drive comes in iron gray and military green. Pick your favorite color!


RC SJ25M3 feature 03

One-touch auto backup


The StoreJet 25M3 is equipped with a one-touch auto-backup button that instantly backs up your data with just one press*. The button also enables you to reconnect the hard drive to your PC without the need to unplug and reinsert it.

*Transcend Elite software is required.


RC SJ25M3 feature 04

Manage data with Transcend Elite


A free download from Transcend’s official website, the Transcend Elite data management software is available for both Windows OS and macOS. Transcend Elite features backup and restore, data encryption, and cloud backup functions, helping you keep your important files organized, protected, and up-to-date!

For Windows and Mac


Guaranteed quality


Transcend’s external hard drives are built to the highest standards and rigorously tested, offering outstanding quality, performance, and reliability. Transcend products both look after your data and complement your good taste.


RC SJ25M3 feature 06

Transcend StoreJet Slim M3S 2.5″ 2TB Portable Hard Drive Specifications

RC SJ25M3 spec 4TB


Dimensions 500GB~2TB: 129.5 mm x 80.8 mm x 16.1 mm (5.10″ x 3.18″ x 0.63″)
4TB: 129.5 mm x 80.8 mm x 24.1 mm (5.10″ x 3.18″ x 0.95″)
Weight 500GB~2TB: 185 g (6.53 oz)
4TB: 294 g (10.37 oz)
  • Iron gray/
  • Military green


USB Type
  • micro USB to USB Type A
Connection Interface
  • USB 3.1 Gen 1


  • 500 GB/
  • 1 TB/
  • 2 TB/
  • 4 TB
Storage Media
  • 2.5″ HDD

Operating Environment

Operating Temperature 5°C (41°F) ~ 55°C (131°F)
Operating Voltage
  • 5V
  • Transcend Elite software is required for One Touch Auto-backup and AES encryption functions.
  • Dimensions given are exclusive of protruding elements.


  • CE/
  • FCC/
  • BSMI/
  • KC/
  • RCM/
  • EAC
  • Three-year Limited Warranty
Warranty Policy
  • Please click here for more information about the Transcend Warranty Policy.
  • Drop test is based on U.S. military drop-test standards MIL-STD-810G 516.6, and performed in non-operating state. This does not guarantee the invulnerability of this product under any circumstances. More information about Transcend’s MIL-STD test can be found here.

System Requirement

Operating System
  • Microsoft Windows 7
  • Microsoft Windows 8
  • Microsoft Windows 10
  • Mac OS X 10.7 or later
  • Linux Kernel 2.6.31 or later

Transcend StoreJet Slim M3S 2.5″ 2TB Portable Hard Drive Technical Specification

Transcend StoreJet Slim M3S 2.5″ 2TB Portable Hard Drive


Device Type Hard drive – external (portable)
Capacity 2 TB
Encryption Algorithm 256-bit AES
Form Factor 2.5″
Interface USB 3.1 Gen 1
Internal Drive Interface Serial ATA
Features Shock resistant, sleep mode, One-Touch Backup, LED power indicator, 256-bit AES
Width 80.8 mm
Depth 129.5 mm
Height 16.1 mm
Weight 185 g


Interface Transfer Rate 5.0 Gbps (USB 3.1 Gen 1)

Expansion & Connectivity

Interfaces 1 x USB 3.1 Gen 1
Compatible Bay 2.5″


Power Source USB bus

Software & System Requirements

Software Included Transcend Elite
OS Required Linux Kernel 2.6.31 or later, Apple MacOS X 10.7 or later, Microsoft Windows 7 / 8 / 8.1 / 10


Compliant Standards BSMI, FCC, MIL-STD 810G 516.6
Enclosure Colour Iron grey

Manufacturer Warranty

Service & Support Limited warranty – 3 years

Environmental Parameters

Min Operating Temperature 5 °C
Max Operating Temperature 55 °C


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