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LaCie 2big Dock 2-Bay Thunderbolt 3 RAID Array (Black)

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The back of the 2big is equipped with two 40 Gb/s Thunderbolt 3 ports, which allow you to interface with your host system at speeds up to 550 MB/s. The Thunderbolt 3 interface can also be used to connect two 4K displays or one 5K display, as well as daisy-chain up to five additional Thunderbolt 3 peripherals together. Additionally, there is a DisplayPort interface that supports 720p, 1080p, 4K, and 5K displays.

On its front, the 2big has a built-in USB 3.2 Gen 2 Type-A port, which can charge your USB device or connect a USB drive or digital camera for offloading files, as well as a CompactFlash Type I and UHS-II SDXC card slots, allowing you to directly download content from your drone, DSLR, GoPro, and more. This dock can store hundreds of hours of 4K footage and hundreds of thousands of raw images.

The LaCie 2big Thunderbolt 3 Dock includes a USB Type-C cable and an external power supply. Protection is provided by a limited 5-year warranty.

Thunderbolt and Thunderbolt 2 are only supported when Apple's Thunderbolt 3 (USB Type-C) to Thunderbolt 2 Adapter is used with systems running macOS 10.12 Sierra or later.


The Heartbeat of Your Workflow

The LaCie 2big Dock simplifies and centralizes your desktop by connecting your laptop to your compatible peripherals using a single cable.

Dual Thunderbolt 3 Ports

Power your laptop while simultaneously daisy chaining up to 5 additional LaCie 2big drives or other Thunderbolt 3 or USB Type-C solutions.

USB 3.2 Gen 2 Type-A Hub

Using the front-facing USB 3.2 Gen 2 Type-A hub, charge your phone or connect a shuttle drive or digital camera to offload footage or files.

SD and CF Card Slots

Directly ingest files from your drone, DSLR, GoPro, and other devices with the front-facing memory card slots.

DisplayPort 1.4

Connect to a 8K @ 30 Hz display or a 4K @ 120 Hz display via the DisplayPort 1.4.

Delivering Robust Performance

With up to 16TB of capacity for a massive file library and Thunderbolt 3 transfer speeds of up to 550 MB/s, the LaCie 2big Dock is built to keep you creating.

Transfer Material Quickly

Transfer 1 hour of footage in around 1 minute, depending on the operating environment and other factors such as RAID mode, RAID configuration, chosen interface, and drive capacity.


Macs with Thunderbolt and Thunderbolt 2 ports can experience high-end transfer rates with LaCie Thunderbolt 3 professional solutions. Apple's Thunderbolt 3 (USB Type-C) to Thunderbolt 2 Adapter (sold separately) provides a user-friendly connection between LaCie Thunderbolt 3 solutions and Macs running macOS 10.12 Sierra or later with earlier generations of Thunderbolt technology.
Enterprise-Class Drives

Tough. Ready. Scalable.

Designed with the creative professional in mind, the LaCie 2big Dock features Seagate IronWolf Pro drives and RAID optimization for improved power management and reliability. Thanks to the LaCie RAID Manager, you can monitor your system's health with audible alarm and email alerts in the case of failure and warning events.
In the Box
  • LaCie 2big Dock 2-Bay Thunderbolt 3 RAID Array (Black)
  • USB Type-C Cable
  • External Power Supply
  • 1-Month Membership to Adobe Creative Cloud All Apps Plan (Product Registration Required)
  • Limited 5-Year Warranty
More Information
Product ConditonNew
Number of Bays 2 x 3.5"
Pre-Format HFS+
I/O 2 x USB Type-C (Thunderbolt 3 (40 Gb/s))
1 x USB Type-C (USB 3.1 / USB 3.2 Gen 1 (5 Gb/s))
1 x USB Type-A (USB 3.1 / USB 3.2 Gen 1 (5 Gb/s))
1 x DisplayPort (DisplayPort 1.2)
Compatible Drive Interface SATA III
Media Card Slots SD/SDHC/SDXC
CFast 2.0
Form Factor Desktop
Transfer Rates 550 MB/s (RAID 0)
UASP Support No


OS Compatibility Windows 10 or Later
macOS 10.12 or Later
*As of April, 2021: Check with manufacturer for the most up-to-date compatibility


Security Features Kensington Security Slot


AC Input Power 100 to 240 VAC, 50 / 60 Hz
Power Source AC Adapter
PSU Wattage 1 x 60 W


Operating Temperature 37 to 72°F / 5 to 40°C
Operating Humidity 10 to 60% (Non-Condensing)
Storage Temperature -4 to 140°F / -20 to 60°C
Storage Humidity 5 to 85% (Non-Condensing)


Status Monitoring LED Indicator
Cooling 1 x Fan
Dimensions 8.5 x 4.6 x 3.7" / 216.9 x 118 x 93.3 mm
Weight 8.6 lb / 3.9 kg

Packaging Info

Package Weight 10.06 lb
Box Dimensions (LxWxH) 12.6 x 9.4 x 7.1"
WARNING: This product may expose you to chemicals which are known to the State of California to cause cancer. For more information go to www.P65Warnings.ca.gov.
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