LaCie claims its SSD-based Little Big Disk Thunderbolt product is the fastest portable Thunderbolt drive on the market, with a read speed of up to 635MBps, more than three times that of the hard drive based models in the series.

This is sufficient to allow the simultaneous editing of six 422 video streams, matching the performance of rack-mounted fibre channel storage, officials claimed..

Available in 512GB and 1TB versions, the Little Big Disk Thunderbolt uses a pair of 2.5in SSDs that can be configured as RAID 0 for performance or RAID 1 for reliability.

A second Thunderbolt port allows peripherals to be daisy-chained, and four daisy-chained Little Big Disk Thunderbolt SSDs give transfer rates of up to 800MBps.

"The new LaCie Little Big Disk can complete tasks in minutes that used to take hours. This saves our customers time and therefore money."

The 512GB model costs $799, while the 1TB version is $1299.