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| Product | LaCie 2big Thunderbolt Series (4TB) | LaCie 2big Thunderbolt Series (6TB) | LaCie 2big (2TB, USB 3.0)  | LaCie 5big Thunderbolt (20GB) |
| Price | $469.99 to $519.00 | $699.99 | MSRP: $349.99 | $2,099.99 to $2,199.95 |
| CNET editors' rating | 3.5 stars | 3.5 stars | 4 stars | 4 stars |
| Average user rating | 5 stars | 5 stars | 0.5 stars | 0 stars |
| Release date | Info unavailable | Info unavailable | Info unavailable | Info unavailable |
| Bottom line | The LaCie 2big Thunderbolt Series strikes a balance between capacity, performance, and price and would be a good choice for owners of Thunderbolt-enabled computers. | The LaCie 2big Thunderbolt Series strikes a balance between capacity, performance, and price and would be a good choice for owners of Thunderbolt-enabled computers. | The LaCie 2big USB 3.0 is an overall excellent external hard drive. | Though it lacks RAID 5, the speedy 5big Thunderbolt is still worth the hefty investment, and is a better buy than competing devices. |
| Product Description | LaCie 2big Thunderbolt Series - Hard drive array | LaCie 2big Thunderbolt Series - Hard drive array | LaCie 2big - Hard drive array | Info unavailable |
| Packaged Quantity | 1 | 1 | 1 | Info unavailable |
| Device Type | Hard drive array | Hard drive array | Hard drive array | Info unavailable |
| Total Array Capacity | 4 TB | 6 TB | 2 TB | Info unavailable |
| Interface | Thunderbolt | Thunderbolt | SuperSpeed USB 3.0 | Info unavailable |
| Installed Devices / Modules Qty | 2 (installed) / 2 (max) | 2 (installed) / 2 (max) | 2 (installed) / 2 (max) | Info unavailable |
| Dimensions (WxDxH) | 3.6 in x 7.9 in x 6.8 in | 3.6 in x 7.9 in x 6.8 in | 3.7 in x 7.2 in x 7.9 in | Info unavailable |
| Weight | 6 lbs | 6 lbs | 7.9 lbs | Info unavailable |
| Storage Controller | RAID - RAID RAID 1 - RAID JBOD - RAID RAID 0 | ( Thunderbolt ) RAID - RAID RAID 1 - RAID JBOD - RAID RAID 0 | ( USB 3.0 ) 1 x RAID - RAID RAID 1 - RAID JBOD - RAID RAID 0 | Info unavailable |
| Storage Controller (2nd) | None | None | None | Info unavailable |
| Hard Drive | 2 x 2 TB Hot-swap | - Portable 2 x 3 TB Hot-swap - Thunderbolt technology - Dual cooling system - Aluminum enclosure | - Helps to reduce power consumption 2 x 1 TB Hot-swap - PC and Mac compatible | Info unavailable |
| Hard Drive (2nd) | None | None | None | Info unavailable |
| OS Required | Apple MacOS X 10.6 or later | Apple MacOS X 10.6 or later | Apple MacOS X 10.5 Apple MacOS X 10.6 Microsoft Windows Vista / XP / 7 | Info unavailable |
| Manufacturer Warranty | 3 years warranty | 3 years warranty | 3 years warranty | Info unavailable |
| Full specifications | Full specifications | Full specifications | Full specifications | Full specifications |
| Buying choices |
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| MSRP: $349.99 See manufacturer website for availability. |
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LaCie 2big compare (4TB, USB 3.0)
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