LaCie (www.lacie.com) has announced the latest evolution of its d2 desktop storage line. The latest LaCie d2 features a new all-aluminum unibody enclosure, dual Thunderbolt 2, and USB 3.0.

Plus, LaCie designed the d2 Thunderbolt 2 to be upgradable to the fastest SSD on the market, which boosts speeds up to 1150 MB/s. It combines the latest interfaces and a Seagate 6 TB 7200 RPM professional hard disk, resulting in speeds of up to 220 MB/s.

To multiply speeds by a factor of five, users can install the LaCie d2 SSD Upgrade (sold separately). The upgrade increases speeds up to 1150 MB/s and adds 128 GB of PCIe SSD storage. This speed exceeds the performance of even the internal SSD on a late-model Mac or PC.

The LaCie d2 Thunderbolt 2, design by Neil Poulton, will be available this month through Appleand LaCie in 3TB (US$299.00), 4TB ($399.00) and 6 TB ($499.00) capacities. The 128 GB LaCie d2 SSD Upgrade ($299) will be available in October. The LaCie d2 will also be offered in a USB 3.0-only version in 3 TB, 4 TB, and 5TB capacities, available in October.