LaCie 5big

Thunderbolt™ Series

5-Bay RAID | Dual Thunderbolt

Thunderbolt Power. Massive 5big Capacity.

  • Shocking speeds up to 785MB/s
  • RAID 0, 1, and JBOD support with hot swap
  • Dual Thunderbolt ports for daisy chaining
  • Whisper-quiet dual cooling
Design by Neil Poulton

Current Price

Available at LaCie resellers only

3-Year Limited Warranty Included

Select your product:


Out of Stock


With 785MB/s*, immense five-disk capacity, and LaCie proven reliability, the 5big Thunderbolt Series is the perfect complement to a Thunderbolt-compatible computer for professional creative workflows. Thunderbolt power for today. Enough capacity for current and future projects.

  • More Speed, More Efficient Workflow
    Performance to spare for data-heavy applications.
    Learn more >
  • RAID Flexibility for Speed and Security
    Mac® OS RAID and hot-swap for performance and data security.
    Learn more >
  • Daisy Chain to Multiply Options
    Connect multiple devices for more speed and convenience.
    Learn more >
  • Dual Cooling System for Long-Term Reliability
    Efficient and near-silent cooling for a long-lasting product.
    Learn more >
  • Perfect for Professional Environments
    Flexible installation, real-time monitoring, and three-year warranty.
    Learn more >

More Speed, More Efficient Workflow

More speed means a leaner workflow. Get 785MB/s* thanks to five 7200rpm/64MB cache hard disks preconfigured in RAID 0. With these speeds, you have all you need for any post-production work. Handle multiple 2K uncompressed 10-bit streams. And with capacities up to 25TB, you have enough storage for today and the future. For example, you could store all your project's raw daily footage onto a single LaCie 5big. Focus on your creative projects without the hassle of managing multiple storage devices.

RAID Flexibility for Speed and Security

Thanks to its five disks, the LaCie 5big lets you custom-make RAID configurations for your precise needs. Create a lightning-fast volume with three disks in RAID 0, and a safe volume with two disks in RAID 1. Thanks to hot-swappable disks**, you can simply slide a new disk into the safe volume without switching off the device. Use the fast volume for use with Final Cut Pro X™, Adobe® Premiere®, or Aperture™, and the safe volume to back up your projects. No downtime, and no data loss. The LaCie 5big can also be used as a JBOD array. With five working days a week, you can assign each disk to a daily backup. Support for JBOD makes the LaCie 5big the ideal backup companion to your company's Mac Mini Server.

LaCie also offers the RAID Monitor software for this product. It alerts you when a disk needs maintenance, identifies which disk has failed, and helps you to resolve the issue.
RAID Configurations


Speed +



Daisy Chain to Multiply Options

Thunderbolt technology is the most flexible interface ever created. With dual Thunderbolt ports on the LaCie 5big, you can daisy chain up to six Thunderbolt peripherals together. That means you don't need to buy a hub to connect multiple devices to a single Thunderbolt port on your computer. In addition, it increases the total amount of storage you can make available to your Mac. Thunderbolt technology is also mini-DisplayPort compatible. For example, you can connect a display and a LaCie 5big to your Mac via the included Thunderbolt cable.

Dual Cooling System for Long-Term Reliability

The LaCie 5big's advanced dual cooling system ensures long-term reliability by preventing overheating. The system consists of three key components: an innovative heat-dissipating aluminum casing, a Noctua® cooling fan, and jumbo heat exhausts. For the enclosure, its solid-aluminum heat sink design diverts and dissipates heat more efficiently than plastic casings. Its ultra-quiet Noctua NF-P12 fan pulls heat away from the internal components while producing exceptionally little noise. It also controls its speed according to temperature, which means that it works more efficiently while prolonging its lifespan. The LaCie 5big also has oversized air holes to facilitate airflow from the fan and reduce noise. All together, this ultra-quiet cooling system makes the LaCie 5big perfect for even the most noise-sensitive creative environments.

Perfect for Professional Environments

Designed for Convenience
The LaCie 5big was painstakingly designed to integrate seamlessly into professional environments. With its small footprint and space-saving design, you can stand it alone or stack multiple LaCie 5bigs. Whatever the professional environment, the LaCie 5big delivers convenience and piece of mind.
Support When You Need It
Your LaCie 5big is protected by a three-year limited warranty. It includes comprehensive, complimentary web-based resources, expert in-house technical support, and worldwide repair/replacement coverage. Warranty extensions and Advance Care Option can also be purchased. For details, see

Need a spare drive?
Be ready in case a drive fails. A spare drive lets you replace it yourself, right away.
Click Here >

Warranty upgrades
Enhance your warranty with extended coverage and fast product replacement.
Start here >

* Tests conducted in RAID 0 with five 4TB 7200rpm drives. Speeds depend on the drives and RAID mode used, and average transfer rates may vary from one computer to another and from one product to another.
** Hot swapping will result in data loss in a RAID 0 array.

1TB (Terabyte) = 1000GB. 1 GB = 1,000,000,000 bytes. Total accessible capacity varies depending upon operating environment (typically 5-10% less).

Thunderbolt and the Thunderbolt logo are trademarks of Intel Corporation in the U.S. and/or other countries.

Item Number : 
Capacity : 
Interface :  Dual 10Gb/s Thunderbolt™ ports for daisy chaining
Interface Transfer Rate :  Up to 10Gb/s
Average Transfer Rate :  785MB/s read, 695MB/s write*
Included Disks :  5x swappable hard disks
Rotational Speed (rpm) :  7200rpm
Cache :  64MB or greater
RAID Modes :  Preconfigured RAID 0 array
RAID 1 / JBOD configuration using Mac® OS Disk Utility
Protocols :  Data: PCI Express
Video: Dual-Mode DisplayPort
Data Channels :  10Gb/s independent uplink and downlink
Video Channels :  10Gb/s independent uplink and downlinks
Daisy Chain :  Up to six Thunderbolt technology-compatible devices including LaCie Thunderbolt series products, other Thunderbolt technology-compatible devices, and LaCie professional displays
Power :  Low power mode allows for daisy chaining
Cables Technology :  Thunderbolt cables
Cooling :  Aluminum enclosure
Noctua® magnetic levitation cooling fan: high-performance, quiet, zero-vibration
Acoustic :  Standby: Negligible
Idle: 25-28dBA
Operating: 25-29dBA**
Power Supply :  100-240Vca; 47/63Hz
Dimensions (WxHxD) :  6.8 x 8.6 x 7.7 in. / 173 x 220 x 196 mm
Weight :  7.6 kg / 16.8 lbs.
System Requirements :  • Computer with a Thunderbolt port
• Mac OS X 10.6 or greater
Box Content :  • LaCie 5big Thunderbolt Series
• External power supply
• Thunderbolt cable
• CD with User Manual and software (Intego® Backup Manager Pro)
• Quick Install Guide
Comments :  * Tests conducted in RAID 0 with five 4TB 7200rpm drives. Speeds depend on the drives and RAID mode used, and average transfer rates may vary from one computer to another and from one product to another.
** These measurements have been made under normal conditions, one meter/three feet from the front of the product. It may vary with conditions and product configuration.

1TB (Terabyte) = 1000GB. 1 GB = 1,000,000,000 bytes. Total accessible capacity varies depending upon operating environment (typically 5-10% less).

Specifications and appearance are given as guidelines and may change without notice.


June 2013
“By concentrating on fast connectivity and maximum capacity, the 5big Thunderbolt is a serious storage solution.” Karl Hodge
Read More >
April 2013
4 stars incredible top speeds ad good ones on average but the proces restricts it to pro-level video work