Transcend External HDD 4TB – Purple (TS4TSJ25H3P)

The Transcend StoreJet 25H3 4TB (TS4TSJ25H3P) is a rugged, high-capacity portable external hard drive designed for users who need durable storage with fast data transfer capabilities. Featuring a vibrant purple anti-shock silicone rubber finish and a military-grade three-stage protection system, it safeguards your data from accidental drops and rough handling. With a USB 3.1 Gen 1 interface supporting transfer speeds up to 5Gbps and an integrated one-touch auto-backup button, this 2.5-inch SATA HDD provides both speed and secure data management for professionals, travelers, and content creators.

Product Features

High-Speed Data Transfer

The drive uses a USB 3.1 Gen 1 interface (USB 5Gbps), backward compatible with USB 2.0, and supports UASP for optimized transfer performance. Real-world read/write speeds typically reach 140 MB/s, making it ideal for large file transfers and media storage.

Military-Grade Shock Protection

Certified to MIL-STD-810G 516.6, the StoreJet 25H3 features a three-stage protection system:

• Outer Shell: Durable anti-shock silicone rubber absorbs vibration and impact.
• Internal Suspension: Advanced damper system allows the HDD to “float,” protecting spinning platters from sudden shocks.
• Reinforced Hard Casing: Provides structural support to withstand drops and rough handling.

One-Touch Auto-Backup and Quick Reconnect

A physical button enables instant data synchronization with Transcend Elite software. The same button can also re-enable the drive after a safe removal without unplugging the USB cable.

Data Security and AES Encryption

Supports 256-bit AES file and folder encryption through Transcend Elite software, ensuring sensitive files remain secure. Disk locking and cloud backup functionalities are also available via the software.

Power Management

Automatically enters a power-saving sleep mode after 10 minutes of inactivity, reducing energy consumption and prolonging drive life.

Software & Utilities

Includes Transcend Elite for data management, encryption, cloud backup, and disk locking. RecoveRx allows recovery of accidentally deleted files such as photos, documents, and videos.

Product Specifications

• Storage Capacity: 4TB
• Interface: USB 3.1 Gen 1 (backward compatible with USB 2.0)
• USB Type: Micro USB to USB Type-A
• Storage Media: 2.5-inch SATA HDD, 5400 RPM (some batches up to 7200 RPM)
• Transfer Speeds: Up to 5Gbps; real-world read/write ~140 MB/s
• Form Factor: 2.5-inch rugged profile
• Dimensions: 131.8 mm x 80.8 mm x 24.5 mm
• Weight: Approximately 298–308 g
• Shock Protection: Three-stage system (silicone rubber outer shell, internal suspension damper, reinforced hard casing)
• One-Touch Backup: Physical button for instant synchronization via Transcend Elite
• Quick Reconnect: Re-enable safely removed drives without unplugging the cable
• Data Security: 256-bit AES file/folder encryption and disk locking via software
• Operating Temperature: 5°C to 55°C (41°F to 131°F)
• Power Supply: 5V USB bus-powered (no external adapter required)
• Software: Transcend Elite and RecoveRx
• System Requirements: Windows 7 or later, macOS 10.7 or later, Linux Kernel 2.6.31 or later
• Certifications: MIL-STD-810G 516.6, CE, FCC, BSMI, KC, RCM, EAC, UKCA