Seagate LaCie 20TB 2big Dock 2-Bay Thunderbolt 3 RAID Array (Black)

Overview

The Seagate STLG20000400 is a two-bay RAID array designed to provide 20TB of high-performance desktop storage, built around the LaCie 2big Dock platform. It comes equipped with two 10TB Seagate IronWolf Pro hard drives spinning at 7200 rpm, preconfigured in RAID 0 for fast data transfer speeds up to 550 MB/s. This setup is ideal for creative professionals who need to manage large files quickly, such as video editors, photographers, and studios handling multi-format media workflows.

With dual Thunderbolt 3 ports, the array supports daisy-chaining up to five additional devices, reducing cable clutter and streamlining your workspace. The front panel features multiple card slots and a USB-A port for direct media ingest, while a rear DisplayPort output supports monitors up to 8K resolution, making it a versatile hub for both storage and display needs.

Key features

• Preconfigured RAID 0 for maximum speed, with options to switch to RAID 1 for data redundancy or JBOD for independent drive access
• Dual Thunderbolt 3 ports enable fast data transfers and daisy-chaining of multiple devices to simplify your setup
• Front panel USB-A 3.2 Gen 2 port and slots for CFexpress Type B, CFast 2.0, and SD UHS-II cards allow direct offloading from cameras and drones without extra adapters
• DisplayPort output supports 4K and 8K monitors, consolidating storage, power, and video through a single Thunderbolt cable
• LaCie RAID Manager software offers an intuitive interface for monitoring drive health, configuring RAID modes, and setting up automatic alerts
• Five-year warranty includes Rescue Data Recovery Services, providing an added layer of protection for your valuable media

Key specs

• Total capacity: 20TB (two 10TB drives)
• Drive model: Seagate IronWolf Pro
• Drive speed: 7200 rpm
• Interface: Dual Thunderbolt 3 ports
• Transfer speed: Up to 550 MB/s
• Front panel ports: USB-A 3.2 Gen 2, CFexpress Type B, CFast 2.0, SD UHS-II card slots
• Video output: DisplayPort supporting up to 8K resolution
• RAID modes supported: RAID 0, RAID 1, JBOD
• Warranty: Five years with Rescue Data Recovery Services

Connectivity and compatibility

This RAID array is designed to work seamlessly in mixed Mac and Windows environments thanks to its flexible Thunderbolt 3 and USB-C connectivity. The dual Thunderbolt 3 ports not only deliver fast data transfer but also allow you to connect multiple devices in a daisy chain, reducing cable clutter and improving workflow efficiency. The front panel’s variety of card slots supports direct media ingest from professional cameras and drones, eliminating the need for additional adapters and speeding up your editing process.

Ideal uses and environments

The Seagate STLG20000400 fits well in professional creative environments such as video editing suites, photography studios, and on-set digital imaging technician (DIT) carts. Its large capacity and fast transfer speeds make it suitable for managing multi-camera shoots, high-resolution photo archives, and large raw video files. The integrated DisplayPort output also supports high-resolution monitors, making it a strong choice for color grading and detailed visual work where both storage and display performance are critical.