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LaCie 20TB 2big Dock Thunderbolt 3 Dual-Disk RAID Drive

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Questions about this product?
  • Storage Capacity: 20TB
  • Transfer speeds of up to 450MB/s
  • Dual Thunderbolt 3 ports for 4K workflows
  • SD and CF card slots
  • DisplayPort
  • USB 3.1 port for compatibility with USB-C/USB 3.0
  • 7200RPM/64MB cache (or greater) hard drives
  • IronWolf Pro enterprise-class drives
  • 5-year limited warranty

The LaCie 20TB 2big Dock Thunderbolt 3 Dual-Disk RAID Drive delivers 2-bay RAID storage with high capacity, lighting-fast speeds, and enterprise-class drives in a 2-bay RAID form. The docking station can be powered by a single cable to streamline and centralize your desktop with SD/CompactFlash Card Slots, USB 3.0 Hub, Dual Thunderbolt 3 Ports, Display Port and USB 3.1 Port.

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.

Delivering Robust Performance
With enough capacity for a massive raw-file library and Thunderbolt 3 transfer speeds, the LaCie 2big Dock is built to keep you creating.

Product Features

  • SD/CompactFlash Card Slots: Directly ingest files from memory cards onto LaCie 2big Dock and quickly import photos into Adobe® Lightroom® or Premiere Pro®.
  • USB 3.0 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 storage solutions.
  • DisplayPort: Connect to high-resolution 720p to 1080p or 4K displays.
  • USB 3.1 Port: Universal compatibility with USB-C and USB 3.0 computers via the included adaptor cable.
In the Box
  • LaCie 2big Dock Thunderbolt 3
  • Thunderbolt 3 cable (USB-C compatible)
  • USB 3.0 adaptor (USB 2.0 compatible)
  • External power supply
  • Quick Installation Guide
More Information
Memory Capacity20TB
Product ConditonNew


Number of Bays 2 x 3.5"
Media Card Slots SD/SDHC/SDXC
Connections 2 x USB Type-C (Thunderbolt 3)
1 x USB Type-C (USB 3.1 Gen 1)
1 x USB Type-A (USB 3.1 Gen 1)
1 x DisplayPort (DisplayPort 1.2)
Form Factor Desktop
Maximum RAID Transfer Rate 440 MB/s
RAID Modes RAID 0, 1, JBOD
OS Compatibility macOS 10.12 or Later
Windows 10 or Later


Total Raw Capacity 20 TB (2 x 10 TB)
Type Hard Disk Drive
Rotational Speed 7200 rpm
Initial RAID Configuration RAID 0
Pre-Format HFS+


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
WARNING: This product may expose you to chemicals which are known to the State of California to cause cancer. For more information go to
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