LaCie 2big Dock Thunderbolt 3 20TB

Thunderbolt 3 Dock with multiple connectivity - 20TB

The new Lacie 2big Thunderbolt 3 dock conbines huge storage with multiple connectivity via SD Card slot, CF Card slot, DisplayPort, Thunderbolt 3 and USB 3.0 & 3.1.  The 2big Dock gives back what modern laptops take away.

Part No:
Usually Ships in 1-2 days
£975.00 £812.50
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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 their products—high capacity, lighting-fast speeds, and enterprise-class drives—but it’s more than that. Port by port, slot by slot, they 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. (*CF/SD cards sold separately.)

DisplayPort - 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.  

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.

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

More Information
Capacity 20TB
RPM 7200
  • Internal Storage Media: 2 × 7200-RPM Seagate IronWolf® Pro enterprise-class 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.
  • RAID:
    • Preconfigured HFS+ RAID 0
    • Hardware RAID 0/1/JBOD
  • Security: Kensington® lock compatible
  • Cooling:        
    • Aluminum enclosure with improved internal heat dissipation
    • ‭Thermoregulated Noctua‭®â€­ 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)
  • 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