Transcend 4TB External Hard Drive – Iron Grey (TS4TSJ25M3S)

The Transcend 4TB External Hard Drive (Model: TS4TSJ25M3S) is a high-capacity, rugged storage solution engineered for users who need maximum reliability and durability on the go. With a large 4TB capacity, fast USB 3.1 Gen 1 interface, and military-grade shock protection, this portable hard drive offers the perfect combination of performance and data safety. Designed with a tough silicone outer shell and a compact, impact-resistant body, the StoreJet 25M3S is ideal for backing up large media libraries, project files, and sensitive data—whether you’re at work, traveling, or at home.

Product Features

Massive 4TB Storage Capacity

Offers generous space to store thousands of videos, photos, music files, backups, and large project data—ideal for content creators, photographers, and professionals.

High-Speed USB 3.1 Gen 1 Connectivity

Supports data transfer speeds up to 5Gbps with USB 3.1 Gen 1, significantly reducing backup and file transfer times compared to traditional USB 2.0.

Military-Grade Shock Resistance

Built with a durable three-stage shock protection system: a silicone rubber casing, internal shock-absorbing suspension, and a reinforced hard casing for maximum protection against drops and vibration.

One-Touch Auto Backup Button

Easily initiate instant file backup and data syncing when paired with Transcend Elite software, allowing simple and secure data management.

Rugged and Portable Design

Anti-slip silicone coating and compact design ensure durability and portability. The sleek iron grey finish adds a professional touch.

Power-Saving Sleep Mode

Automatically enters sleep mode after periods of inactivity to save energy and extend the lifespan of the drive.

Cross-Platform Compatibility

Fully compatible with Windows, macOS, and Linux systems—no drivers required for plug-and-play operation.

Product Specifications

• Model Number: TS4TSJ25M3S
• Capacity: 4TB
• Interface: USB 3.1 Gen 1 (backward compatible with USB 2.0)
• Max Transfer Speed: Up to 5Gbps
• Color: Iron Grey
• Material: Anti-slip silicone outer shell, reinforced plastic chassis
• Shock Resistance: Military-grade three-stage protection
• Dimensions: 129.5 mm × 80.8 mm × 24.5 mm
• Weight: Approx. 298 grams
• Power Supply: USB bus-powered (no external adapter required)
• Backup Feature: One-touch auto backup (Transcend Elite software)
• OS Compatibility: Windows 7 or later, macOS 10.10 or later, Linux Kernel 2.6.31 or later
• Included in Box:
  • Transcend 4TB StoreJet 25M3S External Hard Drive
  • USB 3.1 Gen 1 cable
  • Quick start guide
• Warranty: 3-year limited manufacturer warranty