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Black rectangular desktop drive enclosure with front card slots and ports

LaCie

LaCie 2big Dock STLG20000400 20TB external hard drive

SKU CH-0VVH-SM5M0 MPN STLG20000400

A 20 TB desktop RAID enclosure with dual Thunderbolt 3 ports, CFexpress B, CFast 2.0 and SD card slots, a USB 3.2 Type A hub and DisplayPort 1.4 for daisy-chaining up to five devices

  • ColorBlack
  • Thunderbolt 3Yes
  • InterfaceUSB 3.2 Gen 2
  • Capacity20TB
  • RAIDRAID 0/1
  • FeaturesFeatures up to 40TB of capacity and speeds of up to 550MB/s
  • 20 TB capacity stores massive creative libraries
  • Up to 550 MB/s transfer speeds accelerate large-file workflows
  • Dual Thunderbolt 3 ports daisy-chain up to five devices
  • CFexpress B, CFast 2.0 and SD card slots ingest footage directly
  • RAID 0/1 lets you choose speed or data redundancy

Professional storage hub

The LaCie 2big Dock STLG20000400 provides 20TB of desktop storage in a RAID 0/1 enclosure with Thunderbolt 3 and USB 3.2 Gen 2 connectivity. It targets creative professionals who need high-capacity backup and fast access to large media libraries. Integrated CFexpress B, CFast 2.0 and SD card slots plus a DisplayPort 1.4 output reduce the need for extra adapters. The unit ships new with enterprise-class IronWolf Pro drives installed.

Sustained throughput

Dual Thunderbolt 3 ports support daisy-chaining up to 5 devices while maintaining up to 550MB/s transfer rates during long ingest or export sessions. RAID 0 stripes data across both drives for maximum bandwidth; RAID 1 mirrors for redundancy without halting workflow. The hardware RAID controller manages rebuilds in the background so performance stays consistent across extended renders or batch exports.

Setup and common issues

Connect the supplied USB-C cable and external power supply, then use the front USB 3.2 Type A hub port for peripherals or charging. Hot-swappable drive trays let you replace a failed IronWolf Pro module without tools or downtime. Compatibility covers most Windows, macOS and iPad USB-C hosts via Thunderbolt 3, Thunderbolt 4, USB4 or USB 3.0. Buyers who need a single-drive portable solution or lack a Thunderbolt 3 or USB-C host will find this enclosure unsuitable.

Pontos fortes

  • 20 TB capacity stores massive creative libraries
  • Up to 550 MB/s transfer speeds accelerate large-file workflows
  • Dual Thunderbolt 3 ports daisy-chain up to five devices
  • CFexpress B, CFast 2.0 and SD card slots ingest footage directly
  • RAID 0/1 lets you choose speed or data redundancy

Especificações

BrandLaCie
Series2big Dock
ModelSTLG20000400
ColorBlack
Thunderbolt 3Yes
InterfaceUSB 3.2 Gen 2
Capacity20TB
RAIDRAID 0/1
FeaturesFeatures up to 40TB of capacity and speeds of up to 550MB/s
Stay connected with CFexpress B, CFast 2.0, and SD card slots, a USB 3.2 Type A hub port, and a DisplayPort 1.4
Dual Thunderbolt 3 ports daisy chain up to 5 devices
Easily configure RAID 0/1 optimal system performance and data redundancy
Works with Windows, iPad USB-C, and Mac
Connect or charge USB devices with the front USB 3.2 Gen 2 Type A hub port
Thunderbolt and DisplayPort 1.4 allow you to connect two 4k monitors or one 8k monitor
Equipped with hot-swappable IronWolf Pro enterprise-class drives for ultimate reliability
System RequirementsInterface: Thunderbolt 3 + USB 3.1 (THUNDERBOLT 3 + USB 3.1)
Works With USB-C host: USB4, USB 3.0, Thunderbolt 4, Thunderbolt 3
Compatible with most Windows, macOS systems, and iPad USB-C. Visit lacie.com/os for details1 2
1 Reformatting may be required for use with Time Machine.
2 Compatibility may vary depending on user's hardware configuration and operating system.
Dimensions3.67" x 4.65" x 8.54"
Weight8.34 lbs.
Package ContentsLaCie 2Big Dock Thunderbolt 3
USB-C cable
External power supply
Quick Install Guide
ADOBE CC SRS60 TOOLKIT3
Rescue Data Recovery Services4
3 One-month membership to Adobe Creative Cloud All Apps plan is redeemable during product registration. Must redeem within one year of drive registration. Not available in China. Internet connection and Adobe ID required. Available only to users 13 and older.
4 Not available in all countries.
Peso de envio3.63 kg
Dimensões da embalagem279 × 229 × 178 mm

Perguntas sobre este artigo

How loud does the 2big Dock run during continuous RAID 1 operation?

The drive uses hot-swappable IronWolf Pro enterprise-class drives; fan noise under sustained load is typical for a desktop RAID enclosure.

What host connection is required to reach the stated 550 MB/s transfer speed?

A Thunderbolt 3 or USB 3.2 Gen 2 USB-C port on the computer is needed to achieve the advertised throughput.

Can I daisy-chain an older Thunderbolt 2 display through the dual Thunderbolt 3 ports?

The dock provides dual Thunderbolt 3 ports for daisy-chaining up to five Thunderbolt 3 devices; Thunderbolt 2 gear requires an adapter not included.

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