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LaCie 20TB 5big 5-Bay Thunderbolt 2 RAID Array

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  • Storage Capacity: 20TB
  • Up to 1050 MB/s speeds for 4K video editing
  • Hardware RAID 5/6 with hot swap
  • Dual Thunderbolt 2 ports for daisy chaining
  • Aluminum enclosure and whisper-quiet fan

For 4K and other bandwidth-intensive workflows, the LaCie 20TB 5big 5-Bay USB 3.0 Thunderbolt 2 RAID Array offers fast, secure, reliable and quiet data storage. The 5big delivers Thunderbolt 2 speeds capable of supporting 4K video editing and hardware RAID 5/6 for no-compromise data security.

The LaCie 5big Thunderbolt 2 uses Thunderbolt 2 technology, the fastest, most versatile connection for your computer. While first generation Thunderbolt technology transfer rates are 10Gb/s bi-directional, Thunderbolt 2 technology provides 20Gb/s bi-directional. Additionally, Thunderbolt 2 technology gives priority to the video stream, apportioning the required bandwidth for playback. This is a critical advantage when working with high-end video and 3D graphics. 

Featuring hardware RAID, the LaCie 5big is a rarity in the world of high-end DAS. While most DAS must choose between high transfer rates or data protection, the LaCie 5big offers both extraordinary performance and built-in protection. Its powerful RAID engine saves your computer from expending critical processing resources on storage management, which is crucial for video and graphics applications that place heavy demands on computer CPUs. Further, hardware RAID solutions offer advanced RAID configurations to suit the needs of your working environment (see RAID).

The LaCie 5big Thunderbolt 2 features:

  • Desktop convenience
  • Aluminum front and all-metal enclosure
  • A RAID-on-Chip (RoC) processor to manage the RAID
  • Hardware RAIDs 0, 1, 10, 5, 5+Spare, 6, 6+Spare, and JBOD
  • Five SATA channels, up to 6Gb/s per channel
  • Two Thunderbolt 2 technology ports, up to 20Gb/s bi-directional per port
  • Hot-swappable hard drives to reduce downtime
  • A warning system with physical and email alerts
  • Intelligent RAID rebuild with a spare drive
In the Box
  • LaCie 5big Thunderbolt 2
  • External power supply
  • Thunderbolt cable
  • Drawer key
  • Cable lock clip
  • Quick Install Guide
More Information
Memory Capacity20TB
Product ConditonNew
Internal Storage Media   5 x hot-swappable* 7200 RPM/64MB cache (or greater) hard disks
Interface 2 x Thunderbolt™ 2
Interface Transfer Rate 20 Gb/s
Performance Benchmark 30TB RAID 0: 1050 | 900
30TB RAID 5: 840 | 840
Thunderbolt 2 Technology Bidirectional 20 Gb/s permits a high-resolution display and RAW 4K video editing
Power-Saving Mode Reduce power consumption by pressing the front button to spin down disks without disrupting daisy chain transfers (short press initiates power-saving mode; long press turns product off completely)
RAID Modes Preconfigured HFS+ RAID 5
Hardware RAID 0 / 1 / 5 / 6 / 10 / JBOD
Configure RAID using LaCie RAID Manager software
Daisy Chain Connect up to six Thunderbolt-compatible devices – including Thunderbolt 2 and LaCie Thunderbolt Series products – to a computer via a single Thunderbolt cable***
Security AES 256-bit software encryption▲
Kensington® lock compatible
Cable lock
Cooling Aluminum enclosure with improved internal heat dissipation Thermoregulated Noctua® cooling fan: effective and whisper-quiet cooling
Acoustic Standby: Negligible
Idle: 25-28 dBA
Operating: 25-29 dBA▲▲
Power Supply 100 -240 V; 50/60 Hz; 150 W
Dimensions 6.8 x 8.6 x 7.7 in
Weight 16.8 lbs
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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