LaCie 12TB 2big Dock 2-Bay RAID Array Thunderbolt 3

LaCie 12TB 2big Dock 2-Bay RAID Array Thunderbolt 3

LaCie 12TB 2big Dock 2-Bay RAID Array Thunderbolt 3

B&H # LASTGB120004 MFR # STGB12000400
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Product Highlights

  • 12TB Capacity (2 x 6TB Hard Drives)
  • 2 x Thunderbolt 3 | 1 x USB 3.0 Type-C
  • 1 x USB 3.0 Type-A | 1 x DisplayPort
  • CompactFlash & SD Card Slots
  • Supports RAID 0, 1, and JBOD
  • Preconfigured as HFS+ RAID 0
  • Hardware RAID Controller
  • Includes 5-Year Data Recovery Services
  • Up to 27W of Power for Laptop Charging
  • Windows & Mac Compatible
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LaCie STGB12000400 Overview

  • 1Description

If you've been looking for a powerful and versatile Thunderbolt 3 docking station that restores many of the ports and connectivity that have been removed on modern day laptops, take a look at the 12TB 2big Dock 2-Bay RAID Array Thunderbolt 3 from LaCie. The 2big Thunderbolt 3 Dock delivers a storage capacity of 12TB, which is comprised of two 6TB Seagate IronWolf Pro 7200 rpm SATA III 3.5" enterprise-class hard drives. While the 2big is compatible with Windows 10 and macOS 10.12, it comes formatted as HFS+ for Mac, and is configured as hardware-controlled RAID 0, which provides performance gains, but no data redundancy. Also supported is RAID 1 and JBOD.

The back of the 2big is equipped with two 40 Gb/s Thunderbolt 3 ports and one 5 Gb/s USB 3.0 Type-C port, all of which allow you to interface with your host system at speeds up to 440 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. If you need to power your laptop, the USB Type-C port provides 27W of power, while the Thunderbolt 3 interface provides 15W of power for charging USB Type-C laptops. Additionally, there is a DisplayPort interface that supports 720p, 1080p, and 4K displays.

On its front, the 2big has a built-in USB 3.0 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 and SD 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 12TB 2big Thunderbolt 3 Dock includes a Thunderbolt 3 / USB Type-C cable and an external power supply. If you want to use this dock with your USB 3.0 Type-A system, a USB 3.0 Type-C to Type-A cable is also included. 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.

Note: In order to take advantage of the 1-month membership to Adobe Creative Cloud, customers will need to register this drive on once it has been received. Upon registration, they will then receive an email with code redemption instructions for one complimentary month of all Adobe Creative Cloud apps, including Lightroom CC, Photoshop CC, Illustrator CC, Adobe XD CC, Premiere Pro, Dreamweaver, 100GB of cloud storage, and more. This offer is stackable with existing Adobe Creative Cloud memberships and expires July 21, 2020. It is not available in all countries, so please check eligibility.

For any LaCie product purchased on or after April 1, 2018 that does not contain the Adobe activation code flyer in the box, please contact Customer Support at with a valid proof of purchase for your code.

General Features


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 3.0 Type-C Port
Universal compatibility with USB Type-C and USB 3.0 Type-A computers via the included adapter cable.
USB 3.0 Type-A Hub
Using the front-facing USB 3.0 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.
Connect to high-resolution 720, 1080p, and 4K displays.


Delivering Robust Performance
With up to 12TB of capacity for a massive file library and Thunderbolt 3 transfer speeds of up to 440 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.


Compatible with Thunderbolt and Thunderbolt 2 (Mac Only)
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.
UPC: 763649119037
In the Box
LaCie 12TB 2big Dock 2-Bay RAID Array Thunderbolt 3
  • Thunderbolt 3 / USB Type-C Cable
  • USB 3.0 Type-C to Type-A Adapter
  • External Power Supply
  • Limited 5-Year Warranty
  • Table of Contents
    • 1Description

    LaCie STGB12000400 Specs

    Number of Bays 2 x 3.5"
    Media Card Slots SD/SDHC/SDXC
    Connections 2 x USB Type-C (Thunderbolt 3 (40 Gb/s))
    1 x USB Type-C (USB 3.1 Gen 1 (5 Gb/s))
    1 x USB Type-A (USB 3.1 Gen 1 (5 Gb/s))
    1 x DisplayPort (DisplayPort 1.2)
    Form Factor Desktop
    Maximum RAID Transfer Rate 440 MB/s
    RAID Modes RAID 0, 1, JBOD
    OS Compatibility Windows 10 or Later
    macOS 10.2 or Later
    Total Raw Capacity 12 TB (2 x 6 TB)
    Type Hard Disk Drive
    Rotational Speed 7200 rpm
    Initial RAID Configuration RAID 0
    Pre-Format HFS+
    Security Features Kensington Security Slot
    Material of Construction Aluminum
    Cooling 1 x  Fan
    Dimensions (W x H x D) 8.5 x 4.6 x 3.7" / 216.9 x 118.0 x 93.3 mm
    Weight 6.4 lb / 2.9 kg
    Packaging Infovbecbwyvxz
    Package Weight 10.55 lb
    Box Dimensions (LxWxH) 12.0 x 9.5 x 7.1"

    LaCie STGB12000400 Reviews

    12TB 2big Dock 2-Bay RAID Array Thunderbolt 3 is rated 4.1 out of 5 by 7.
    Rated 5 out of 5 by from Great Product, Hate LaCie/Seagate Software This thing is great. ?It does make noises when in use, but its not going to bother anyone sitting next to you. ?I love all the ports and the ability to plug in another hard drive to the USB 3.0 port on the front and access it as normal. ?I don't use the TB 3 ports yet, but it is nice to have for the future. ? The only bad thing about this product is the software that LaCie makes you use to set up RAID configurations. ?I was unable to do it via Disk Utility on a Mac, so I had to download their RAID manager app, which is unapologetically garbage.
    Date published: 2018-02-22
    Rated 1 out of 5 by from Didn't Use Right Away, Now Doesn't Turn On I didn't end up needing the drive right away as expected, so I plugged it in to make sure the blue light came on - then packed it up and set it on the shelf. Cut to 9 months later, take it out of the box, set it all up - nothing. No response from the hard drive whatsoever. What's even worse to me is that I've reached out to LaCie three times now through the technical help request form on their website and haven't gotten a single response from the company. I'm a registered user, and put in the serial number for the drive to prove ownership - but they just can't be bothered to respond or help. Horrible service.
    Date published: 2018-09-10
    Rated 4 out of 5 by from I am satisfied. I have been using the 2big drive for a couple months. I am an imaging professional and had some basic requirements for a drive. This drive meets all of them. Setup as a mirrored array was relatively easy. Transfer speeds are good and working quite well with my new iMac with Thunderbolt 3. The card reader is convenient and quick. It is a bit noisy with constant fan noise, but not really a distraction. I am pretty satisfied so far.
    Date published: 2017-12-14
    Rated 5 out of 5 by from Great companion to my new iMac! It's the capacity I need in a RAID system. The speed is great. I love the card slots. It's bigger and heavier then I'd like but it just sits on the desk so no big deal.
    Date published: 2017-12-10
    Rated 5 out of 5 by from Nice upgrade I have a large collection of photos that exceed the 6 TB disc but am confident about Lacie. My old 8 TB (single disc) has ?spun for countless revolutions. I bought this as a 3rd backup since my new computer (Mac) has a T3 port. Going from a USB 3 to T3 was not fast but I knew where the slow down occurred. Not the Mac and not the new HD. I love having my precious collection on a state of the art HD.
    Date published: 2018-03-18
    Rated 5 out of 5 by from Easy set up easy to use Very satisfied with how easy this unit was to install on my Mac Pro. I set it up for raid 1 for redundancy. Also nice to have the compact flash and SD card slots. I have always went with WD drives in the past but seems WD does not want to work with thunderbolt. This LaCie does and that was a big deal for me.
    Date published: 2019-01-11
    Rated 4 out of 5 by from Best all around for home/office Im pretty happy with this after using it for a year as my main working storage for video editing. Before purchasing this i tested the G-Tech version of this which is priced almost the same. The Lacie performed slightly better, runs quieter and has the CF, SD card slots and USB on the front so it makes dumping memory cards really clean and easy. The footprint of the Lacie is also smaller than the G-Tech which is nice.  My only complaint about this drive, which is common among these desktop RAID systems is that it goes into power saving mode far too frequently which results in constant spin up/spin down waits. This wait time can be as long as 20 seconds during which the MacOs finder window will hang and you can’t access any files on any storage devices till it’s finished. This would be fine if it happened infrequently such as leaving the machine for an hour and it goes into standby but unfortunately it does this constantly even while actively using the computer. It seems that if the HD is not accessed within a certain period of time or when it receives a command, it will power down the drives (to put less wear on them). It seems to happen constantly for me, even when I’m actively working on a project that uses the drive. There should be a way to manually control this but I have not found one yet other than turning off the power saving features completely in MacOs.
    Date published: 2019-01-05
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