The LaCie 2big Thunderbolt Series hard drives represent a new era for storage and performance. They feature a preconfigured RAID0 striped set with optional hard disks, which reach read speeds of up to 327MB/s with the SSD model and up to 190MB/s with the hard disk models. The 4TB drive, priced at $599, and the 6TB drive, priced at $749, both have two 7200-rpm drives. With dual Thunderbolt ports you can daisy chain multiple Little Big Disks together to increase overall transfer rates. The more drives you chain together, the higher the performance. You can daisy chain up to six Thunderbolt Technology-compatible devices. Daisy chaining multiple 2bigs pushes overall performance to more than 670MB/s for your most data-intensive tasks. Thunderbolt technology is also mini-DisplayPort compatible, allowing you to connect a display and a 2big to your Mac via a single Thunderbolt cable. System requirements include a computer with a Thunderbolt port, Mac OS X 10.6 or greater and a Thunderbolt cable. The required Thunderbolt cable is not included but can be purchased from QuadStar for $49. For more information or to purchase the LaCie 2big Thunderbolt Series hard drive, call QuadStar at 440-546-9911