Transcend TS2TSJM300 StoreJet 300 Portable Hard Drive



Transcend's StoreJet 300 is a portable hard drive specifically designed for your Mac. Equipped with both Thunderbolt and USB 3.1 Gen 1 interfaces, the StoreJet 300 offers unmatched transfer rates to boost your productivity. In addition, its sturdy metallic design complements your Mac with a sleek and elegant look.

Lightning-fast speeds

Transcend's StoreJet 300 is equipped with a USB 3.1 Gen 1 port and a Thunderbolt port that can daisy-chain up to 6 Thunderbolt devices* without losing throughput and transfer rates. Thunderbolt technology enables simultaneous data transmission and reception, offering unparalleled transfer rates of up to 10Gb/s. The StoreJet 300 is also equipped with the USB 3.1 Gen 1 interface with the support of UASP (USB Attached SCSI Protocol).

Craving more space? Here you go.

Connect Transcend's StoreJet 300 to instantly expand your Mac's storage space by up to 2TB capacity!

Sturdy and elegant design

Transcend's StoreJet 300 features a high-quality metallic design that complements your Mac with a sleek and elegant look. In addition, the StoreJet 300 is natively formatted to the HFS+ file system, and fully supports Time Machine backup.

Transcend Elite software

Transcend Elite is an advanced software suite compatible with both macOS and Windows OS that helps you manage data. A free download from Transcends website, Transcend Elite features backup and restore, data encryption, and cloud backup functions.

Thunderbolt and USB cables included

The StoreJet 300 comes with a Thunderbolt cable and a USB 3.1 Gen 1 cable for greater ease of use.

Everything you need

The package includes:

  • StoreJet 300 portable hard drive
  • Thunderbolt cable
  • USB cable
  • Travel pouch
  • Quick Start Guide
  • Warranty card



Dimensions (Max.)

125.9 mm x 78.2 mm x 17.2 mm (4.96" x 3.08" x 0.68")

Weight (Max.)

240 g (8.47 oz)


Connection Interface

USB 3.1 Gen 1/

Thunderbolt 10 Gb/s



2 TB

Storage Media

2.5" HDD

Operating Environment

Operating Temperature

5°C (41°F) ~ 55°C (131°F)


Read Speed (Max.)

120 MB/s

Write Speed (Max.)

120 MB/s


Speed may vary due to host hardware, software, usage, and storage capacity.







Three-year Limited Warranty

Warranty Policy

Please click here for more information about the Transcend Warranty Policy.

Mac and Time Machine are trademarks of Apple Inc.

System Requirement

Operating System

Microsoft Windows 7

Microsoft Windows 8

Microsoft Windows 10

Mac OS X 10.7 or later


Please format the drive in exFAT or NTFS to use with Windows OS.

No additional files, specification sheets, guides or documentation found for product.

Warranty: 36 Month Manufacturers Return To Base

Full manufacturers warranty details are available at the manufacturers web site.

Unless otherwise specified Techbuy is normally your first point of contact for warranty related returns, further information regarding our warranty policies and consumer guarantees is available on our policies and service & support pages.

To apply for return of a product just go to our returns page.

These terms are in addition to and do not affect any terms, conditions, guarantees and warranties implied by law.

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