User Tools

Site Tools


Welcome to the User Manual for the LaCie Little Big Disk Thunderbolt1) 2. Connect it to a computer that supports Thunderbolt 2 technology for transfer rates that reach up to 20Gb/s! Constructed to handle bandwidth-intensive content such as raw 4K and 3D graphics, the Little Big Disk Thunderbolt 2 is ideal for professional editors, photographers, and graphic artists.

Use this manual to guide you through the process of connecting your LaCie storage. For questions on installation, consult the Getting Help page.

Box content

  • LaCie Little Big Disk Thunderbolt 2
  • Power supply 12V (DC) 4A
  • Thunderbolt cable
  • Drive stand for upright use
  • Hex key and drive stand screws
  • Quick Install Guide
  • User Manual and software utilities are pre-loaded on the disk's volume2)

Important info: Save your packaging. In the event that the storage or enclosure require servicing, the device 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


Important info: To reach Thunderbolt 2 technology transfer rates of up to 20Gb/s bi-directional, the Little Big Disk Thunderbolt 2 must be connected to a computer that supports Thunderbolt 2 technology. Connecting the Little Big Disk Thunderbolt 2 to a computer that supports first generation Thunderbolt technology allows for transfer rates up to 10Gb/s bi-directional. See Daisy Chain for details on adding the Little Big Disk Thunderbolt 2 to a daisy chain with other Thunderbolt 2 technology devices and/or first generation Thunderbolt technology devices.


Views of the enclosure

Front view

  1. Connectivity LED
  2. Removable stand

The front LED will turn solid blue when the Little Big Disk Thunderbolt 2 meets the following conditions:

  • Connected to a power source via the included power supply.
  • Connected to a computer or device compatible with Thunderbolt 2 technology or first generation Thunderbolt technology.


Rear view

  1. Thunderbolt 2 technology ports
  2. Power supply connection 12V (DC) 4A
  3. Chain lock option


Dual cooling heat management

The Little Big Disk Thunderbolt 2 includes state-of-the-art temperature control via LaCie's dual cooling system. The built-in thermo-regulated fan makes certain that temperatures remain within the operational range while the aluminimum enclosure absorbs and dissipates drive heat away from the internal parts. The dual cooling will keep the drives safe and prolong the life of the device.

Since LaCie's unique design draws heat away from the internal drives, the external casing will be warm to the touch after extended use. 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

Heat dissipation is maximized when the Little Big Disk Thunderbolt 2 enclosure rests on its stand in a vertical position. Make certain that it has ample space on all sides of the casing for proper airflow.

Do not stack the unit with one or more enclosures or similar items. Stacking your LaCie Little Big Disk Thunderbolt 2 will void the warranty.

1) 1. Thunderbolt and the Thunderbolt logo are trademarks of Intel Corporation in the U.S. and/or other countries.
2) 2. In the event that your storage must be formatted, you can download documentation and software at LaCie's Support page.
© LaCie 2022 Last modified : Jan 07, 2014