2big Dock 2-bay (up to 20TB, Thunderbolt 3 / USB-C)

LaCie 2big Dock 2-bay (up to 20TB, Thunderbolt 3 / USB-C)


from 553.51

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More Than Storage
If you think outside of the box, so should your storage. The LaCie 2big Dock delivers everything you expect from our products—high capacity, lighting-fast speeds, and enterprise-class drives—but it’s more than that. Port by port, slot by slot, we designed a powerful docking station that gives back to you everything that modern laptops took away.

The result: a creative space that’s entirely streamlined.

It’s the Heartbeat of Your Workflow
A workflow should do just that—flow. The LaCie 2big Dock simplifies and centralizes your desktop by connecting your laptop to all of your peripherals via a single cable.

USB 3.0 Hub
Via the front-facing hub, charge your phone or connect a shuttle drive or digital camera to offload footage or files.

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

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.

USB 3.1 Port
Universal compatibility with USB-C and USB 3.0 computers via the included adapter cable.

Delivering Robust Performance
With up to 20TB of capacity for a massive raw-file library and Thunderbolt 3 transfer speeds of up to 440MB/s, the LaCie 2big Dock is built to keep you creating.

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-C) to Thunderbolt 2 Adapter (sold separately) provides easy connection between LaCie Thunderbolt 3 solutions and Macs with earlier generations of Thunderbolt technology.*

*The Mac must be running macOS Sierra 10.12 or later and transfer rates are based upon the speed of the connection, up to 10Gb/s for Thunderbolt and up to 20Gb/s for Thunderbolt 2. For details and potential restrictions, see Apple Support

Tough. Ready. Scalable.
Designed with the creative professional in mind, the LaCie 2big Dock features Seagate® IronWolf™ Pro drives and RAID optimization for superior power management and reliability. Learn more

Thanks to the LaCie RAID Manager, you can easily monitor your system’s health with audible alarm and email alerts in the case of failure and warning events. Download LaCie Raid Manager

And for added peace of mind, a 5-year limited warranty is included on your system.


  2big Dock Thunderbolt 3 2big Thunderbolt 2
4K footage stored (RAID0) Up to 650hrs* Up to 520hrs*
Performance (RAID 0) Up to 440MB/s** Up to 440MB/s**
5-in-1 docking capabilities  
Thunderbolt compatibility Thunderbolt 3 Thunderbolt 2 (with Apple adapter) Thunderbolt 2
Daisy chain
USB compatibility USB 3.1 (Type C)
USB 3.0
USB 3.0
7200 RPM performance
Enterprise-class drives ✓(16TB only)
LaCie RAID Manager software  
Limited Warranty 5-year 3-year
5-year (16TB only)

Capacity: up to 20TB

2 × Thunderbolt 3
1 × USB 3.1
1 × DisplayPort
1 × USB 3.0 (type A)
1 × SD card
1 × CF card

Max. Speeds: 420MB/s*

Internal Storage Media
2big Dock Thunderbolt 3: 2 × 7200-RPM Seagate IronWolf® Pro enterprise-class hard drives
2big Thunderbolt 2 (16TB): 2 × 7200-RPM enterprise-class hard drives
2big Thunderbolt 2 (6, 8, 12TB): 2 × 7200-RPM hard drives

Interface Transfer Rates
Thunderbolt 3: 40Gb/s
Thunderbolt 2: 20Gb/s
USB-C: 5Gb/s
USB 3.0: 5Gb/s

Interface Technology
Power delivery (2big Dock Thunderbolt 3): Provides up to 27W (USB 3.1) or 15W (Thunderbolt 3) of power to charge USB-C laptops, such as the Apple® MacBook® or MacBook Pro®, while using the drive.

Thunderbolt 3: Bi-directional, dual protocol, and supports dual 4K displays or one 5K display.
Thunderbolt 2: Bi-directional and supports a high-resolution display and RAW 4K video playback.

Preconfigured HFS+ RAID 0
Hardware RAID 0/1/JBOD

Kensington® lock compatible
Integrated cable lock (2big Thunderbolt 2)

Aluminum enclosure with improved internal heat dissipation
‭Thermoregulated Noctua‭®‭ cooling fan: effective and whisper-quiet cooling

Additional Features
System monitoring and email alerts for failure and warning events
Front-facing drive status LEDs

Minimum System Requirements
Thunderbolt 3: Computer with USB-C (Thunderbolt 3 or USB-C) or USB Type-A port
Thunderbolt 2: Computer with a Thunderbolt 2, USB 3.0, Thunderbolt, or USB 2.0 port

Operating system:
Thunderbolt 3: Latest version of macOS® 10.12 and later / Windows® 10 or later required
Thunderbolt 2: Mac OS® X 10.8.5 or later / Latest version of Windows 7, Windows 8
USB 3.0: Windows 7, Windows 8, or Mac OS X 10.6 or later

Intego® Backup Manager Pro for Mac
Genie® Backup Manager Pro for PC
LaCie RAID Manager (provides system monitoring and email alerts for temperature or RAID events)

What’s Included
LaCie 2big Dock Thunderbolt 3
USB-C (USB 3.1 and Thunderbolt 3 capable) cable
USB 3.0 (USB-C to USB-A) adapter
Hard disks
External power supply
Quick Install Guide

* Actual data rates may vary depending on operating environment and other factors, such as chosen interface, RAID mode, and disk capacity.
** Maximum theoretical bus speed.

* On average, 1 hour of 4K 30fps compressed footage creates 30GB of data.
** Actual data rates may vary depending on operating environment and other factors, such as RAID mode, RAID configuration, chosen interface, and drive capacity.
*** Based on the average RAW image size of 100MB on a DSLR.
▲ Via Thunderbolt 3 (USB-C) to Thunderbolt 2 adapter (sold separately from Apple).

Model Numbers
8TB STGB8000400
12TB STGB12000400
16TB STGB16000400
20TB STGB20000400