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Black 2.5 inch portable hard drive with smooth matte finish

Transcend

Transcend StoreJet 25A3 TS1TSJ25A3K 1TB portable hard drive

SKU CH-41FC-99JCS MPN TS1TSJ25A3K

One-touch auto-backup button and shock-absorbing suspension protect 1 TB of data over USB 3.0

  • ColorBlack
  • InterfaceUSB 3.0
  • Capacity1TB
  • FeaturesSuperSpeed USB 3.0 compliant and backwards compatible with U
  • Form Factor2.5"
  • Weight0.4lb
  • SuperSpeed USB 3.0 delivers up to 5 Gb/s bandwidth for fast file transfers
  • Advanced internal suspension system protects the drive mechanism from shocks and drops
  • One-touch auto-backup button starts a backup instantly with a single press
  • 256-bit AES encryption secures files and folders against unauthorised access
  • Bus-powered 2.5-inch design runs from the USB port without an external adapter

1TB portable USB 3.0 drive

The Transcend StoreJet 25A3 TS1TSJ25A3K provides one terabyte of storage in a 2.5 inch form factor. It connects via SuperSpeed USB 3.0 and remains compatible with USB 2.0 ports. The bus-powered design draws energy directly from the host computer so no external adapter is required. This drive suits users who need high-capacity portable backup without a separate power supply.

One-touch backup button and encryption software

A dedicated auto-backup button triggers Transcend Elite software to copy selected folders instantly. The same utility enables 256-bit AES file and folder encryption for sensitive data. Quick Reconnect lets the operating system recognise the drive again after a safe removal without physically unplugging the cable. These features turn a basic storage volume into a managed backup appliance.

Shock-absorbing suspension and slim enclosure

An advanced internal suspension system cushions the drive mechanism against drops and vibration during transport. The black casing measures .4 lb and maintains a slender profile for bag pockets. An LED indicator shows power status and data activity at a glance. The drive enters sleep mode automatically when idle to conserve laptop battery life.

Highlights

  • SuperSpeed USB 3.0 delivers up to 5 Gb/s bandwidth for fast file transfers
  • Advanced internal suspension system protects the drive mechanism from shocks and drops
  • One-touch auto-backup button starts a backup instantly with a single press
  • 256-bit AES encryption secures files and folders against unauthorised access
  • Bus-powered 2.5-inch design runs from the USB port without an external adapter

Specifications

BrandTranscend
SeriesStoreJet 25A3
ModelTS1TSJ25A3K
ColorBlack
InterfaceUSB 3.0
Capacity1TB
FeaturesSuperSpeed USB 3.0 compliant and backwards compatible with USB 2.0
Connection bandwidth up to 5Gbits per second
Advanced internal hard drive suspension system
Extra-large storage capacity
Sleek durable and shock-resistant
Easy Plug and Play operation - no drivers required
USB powered - no external adapter necessary
Power saving sleep mode
Includes Transcend Elite backup and security software
LED power / data transfer activity indicator
256-bit AES file & folder encryption
One Touch Auto-Backup button
Form Factor2.5"
Weight0.4lb
Shipping weight0.32 kg
Package size188 × 140 × 61 mm

Questions about this item

How does the advanced internal suspension system protect the 2.5" drive inside the StoreJet 25A3 from daily bumps?

The advanced internal hard drive suspension system absorbs shocks and vibrations to protect the 2.5" mechanism from everyday drops and impacts while keeping the enclosure slim.

What limits sustained transfer speed when the StoreJet 25A3 runs on a USB 3.0 port all day?

The USB 3.0 interface caps bandwidth at 5 Gbps, so the mechanical drive inside cannot exceed that ceiling during long copy sessions.

Does the StoreJet 25A3 need a separate power adapter or fan when it stays plugged in for hours?

It draws power from the USB port alone with no external adapter, and a sleep mode reduces heat and power draw during idle periods.

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