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Welcome to the User Manual for the LaCie Thunderbolt™* Series. LaCie's Thunderbolt Series storage enclosures feature transfer rates with the potential to reach up to 10Gb/s! Plug them into a Macintosh computer that supports Thunderbolt technology for the ultimate in performance with High Definition video and graphics. This exciting new line of storage is ideal for professional editors, photographers, and graphic artists that demand extraordinary performance both in the office and the field.

This manual will guide you through the process of connecting your Thunderbolt Series enclosure and explain its features. For questions on installation or usage, please consult the Getting Help page.

Box Content

  • LaCie 2big Thunderbolt Series / LaCie Little Big Disk Thunderbolt Series
  • Power supply
  • Drive stand for upright use (the 2big Thunderbolt Series is shipped on its stand)
  • Quick Install Guide
  • CD with documentation

Note on the cable: Visit for details on cables that support Thunderbolt technology.

Important info: Please save your packaging. In the event that the drive should need to be repaired or serviced, it must be returned in its original packaging.

Minimum System Requirements

Your system must meet certain requirements in order for your LaCie product to function properly. For a list of these requirements, please refer to the product packaging or consult the product support web page at

Thunderbolt technology connection:

Thunderbolt Series enclosures must be connected to a Macintosh computer that supports Thunderbolt technology.

* Thunderbolt and the Thunderbolt logo are trademarks of Intel Corporation in the U.S. and/or other countries.


Views of the Drive

Front View

2big Thunderbolt Series


Little Big Disk Thunderbolt Series


Rear View

2big Thunderbolt Series


Little Big Disk Thunderbolt Series


Hard Disk Heat Management

Heat Dissipation Design

The Thunderbolt Series enclosures feature metal bodies that dissipate drive heat. The large surface area of the heat sink casing absorbs all internal heat, keeping the drives safe and prolonging their life. Since LaCie's unique design draws heat away from the internal drives, the external casing will be warm to the touch after extended use. Please make sure that the vent on the back bezel is not obstructed and that there is a natural airflow across the casing.

Position and Stacking

2big Thunderbolt Series

Little Big Disk Thunderbolt Series

© LaCie 2023 Last modified : Apr 25, 2013