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Welcome to the User Manual for the LaCie d2 USB 3.0 Thunderbolt™ Series. Your drive features two cutting-edge interfaces, SuperSpeed USB 3.0 and Thunderbolt. Not only does your drive let you transfer huge amounts of data much faster than before, it's also compatible with the widely available USB 2.0 for universal connectivity. LaCie's exciting new line of storage devices is ideal for videographers, photographers, and heavy data users that demand extraordinary performance.

These pages will guide you through the process of connecting your LaCie product and will explain its features. If this manual doesn't answer your questions or if you are having trouble, consult the Getting Help page.

Box Content

Your box contains the following:

  • LaCie d2 USB 3.0 Thunderbolt™ Series
  • Thunderbolt cable
  • USB 3.0 cable (USB 2.0-compatible)
  • Power supply (12V/2A)
  • Drive stand for upright use
  • Rubber feet
  • Quick Install Guide

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


Views of the Drive

Front View

  1. Activity LED
  2. Removable stand


Rear View

  1. Power switch
  2. USB 3.0 port
  3. Thunderbolt port
  4. Power supply connection
  5. Chain lock option


Hard Disk Heat Management

Heat Dissipation Design

This LaCie product's metal body is ideal for naturally dissipating internal drive heat. Its unique design actually draws heat away from the internal drive toward the external casing. The large surface area of the heat sink casing absorbs internal heat and dissipates it, keeping the drive safe and prolonging its life and reliability.

As a consequence, it is normal that the external casing is warm to the touch. Please make sure that the vent on the back-bezel is not obstructed and that there is a natural airflow across the casing.

Upright, Stack & Rackmount Configuration

Heat dissipation is maximized when this LaCie product is in the upright position. When stacking LaCie products, please remember to attach the included rubber feet (if included) on the under side of your drives. This will allow for some airflow between your drives so that the heat dissipation can work effectively. LaCie does not recommend stacking or racking more than three drives on top of each other, especially if these drives are turned on simultaneously.

© LaCie 2022 Last modified : Mar 01, 2013