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LaCie 2big 10TB Dual 10Gb/s Thunderbolt 2-Bay RAID External Hard Drive 9000478

  • Shocking speeds up to 327MB/s
  • RAID flexibility: speed or security with Mac OS
  • Dual Thunderbolt ports for daisy chaining
  • Two hot-swappable disks for non-stop data access
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The Essential Professional Storage
With speeds up to three times faster than FireWire 800, LaCie 2big Thunderbolt Series also features RAID security, hot-swappable disks, and daisy chain convenience. Heavy data users can turbo charge their workflow with jaw-dropping speed improvements. And capacities up to 10TB on 7200rpm hard disks deliver the professional storage they demand. Improve your workflow. Get huge data storage. Ensure full data protection.

Learn more about the LaCie 9000478

Quick Info


  • Limited Warranty period (parts): 3 years
  • Limited Warranty period (labor): 3 years

Customer Reviews of the LaCie 9000478

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  • Avril R.
  • 6/22/2014 7:22:43 AM
  • Tech Level: High
  • Ownership: 1 week to 1 month
  • Verified Owner

5 out of 5 eggsMust Have Accessory for MacBook

Pros: A small footprint on the desk conceals a huge storage capacity. The unit was easy to set to RAID 1 (you lose the neat LaCie icon, but you can download these from the LaCie website and replace them on your computer). The Thunderbolt connection is blazingly fast, making Time Machine a short and hassle free affair. I checked the unit out before plugging it in and it is easy to change out the HDDs in case of a failure.

Cons: The cooling fans are a bit loud, but not as loud as some external HDD units that I have had in the past. There are no physical lights or indicators on the unit in the event of a disk failure, but you can download an app from LaCie which does the job.

Other Thoughts: I put a lot of research into finding a Thunderbolt connected solution for my Time Machine backups, plus one-to-one copying of important files. Thunderbolt solutions are expensive and are not all created equally. This unit uses a software solution to RAID, which might use system resources, but is a better solution than a proprietary hardware solution, as in some other brands' equivalent offerings. A hardware RAID is one more thing to go wrong, and then you are stuck replacing the proprietary RAID board.

Price on this is about as good as it gets - dollars per TB of storage. This has two disks. LaCie have other units with 4 disks, giving a greater total of storage in a RAID 0, but not as convenient for more modest storage needs under RAID 1.

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