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Blue 2.5 inch portable hard drive with rubber shock-resistant case

Transcend

Transcend StoreJet 25H3 1TB portable hard drive TS1TSJ25H3B Blue

SKU CH-N4TP-S262X MPN TS1TSJ25H3B

One-terabyte portable USB 3.0 hard drive with three-stage shock protection and a quick-reconnect button

  • Total capacity1 TB
  • Interface typeUSB 3.0
  • Form factor2.5 in (6.35 cm)
  • Setup requirementsDesktop or notebook computer with a working USB 2.0 or USB 3
  • Product colorBlue
  • Key featuresMilitary-grade shock resistance* Fully Compliant with the Hi

Model 1TB (Blue)

  • Three-stage shock protection meets MIL-STD-810G 516.6 drop-test standards
  • Quick Reconnect button restores USB link without unplugging the cable
  • One Touch Auto-Backup button starts backup with a single press
  • 256-bit AES encryption secures files through Transcend Elite software
  • USB 3.0 interface works with USB 2.0 ports for broad compatibility

Rugged 1 TB USB 3.0 storage

The Transcend StoreJet 25H3 TS1TSJ25H3B is a 1 TB portable hard drive built around a 2.5" mechanism and a blue anti-shock rubber shell. It connects through a USB 3.0 interface that remains fully compliant with the Hi-Speed USB 2.0 specification. The three-stage shock protection system meets U.S. military drop-test standards MIL-STD-810G 516.6, making the drive suitable for mobile professionals and field workers who need durable external storage.

Silent passive operation

The drive has no fan and relies on its aluminium casing and rubber exterior to dissipate heat during normal use. Power is drawn entirely from the host USB port, so no external adapter is required and there is no audible noise from spinning components beyond the drive mechanism itself. The Quick Reconnect button lets the user restore a safely removed connection without unplugging the cable, reducing wear on the port.

One-touch backup and encryption software

A dedicated One Touch Auto-Backup button triggers the bundled Transcend Elite software to run scheduled or immediate file and folder copies. The same software enables 256-bit AES encryption for selected data, though the encryption feature only functions while Transcend Elite is installed and active. The package includes the drive, a USB 3.0 cable and a quick-install guide for Windows XP through 8.1 and Mac OS.

How it compares

Measured against everything we stock in Portable USB Hard Drives, at today’s prices. Recalculated every night.

Price $77.99
Cheaper than about 61% of the 365 comparable items (median $108.99).
Total capacity 1 TB
Lower than about 70% of the 239 comparable items (median 2 TB).
Price per TB $77.99 per TB
Pricier than about 70% of the 239 comparable items (median $51.50 per TB).

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Specifications

Product
Brand nameTranscend
Product lineStoreJet 25H3
Model nameTS1TSJ25H3B
Total capacity1 TB
Product colorBlue
Ports & slots
Interface typeUSB 3.0
Size & build
Form factor2.5 in (6.35 cm)
Product dimensions0.76 in × 5.27 in × 3.23 in
Product weight7.61 oz
Shipping weight0.32 kg
Package size152 × 114 × 43 mm

Other versions of this model

2 more in the same range

Questions about this item

How do I connect the StoreJet 25H3 to my computer and what step do people often miss?

Plug the USB 3.0 cable into a USB 2.0 or 3.0 port; the drive is recognised automatically. The step users miss is pressing the Quick Reconnect Button after a safe-eject to remount the drive without unplugging the cable.

What part of the 25H3 will need replacement first and how will I know?

The internal 2.5" hard drive is the only moving component; rising seek noise, slower transfers or SMART warnings signal it is nearing end of life.

What limit appears first when I keep the 1 TB drive writing continuously?

Sustained writes hit the mechanical throughput ceiling of the 2.5" drive well before the USB 3.0 interface saturates, so transfer speed drops to the drive's native sustained rate.

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