No-Compromise SpeedGet lightning-fast transfer speeds on Mac and PC thanks to the USB 3.0 and Thunderbolt interfaces. With the SSD version, the LaCie Rugged delivers up to 387 MB/s熔ne of the fastest bus-powered products available*. The hard disk version performs at up to 122 MB/s, a 35% improvement over FireWire 800. Back up and transfer mountains of data in a fraction of the time. Enjoy noticeably more responsive photo library browsing. *These transfer rates were achieved using AJA System Test with the SSD version connected to a Mac computer via the Thunderbolt interface. Actual data rates may vary depending on operating environment and other factors, such as chosen interface and disk capacity.Tough in the Field. Fast Everywhere.With the LaCie Rugged Thunderbolt, even if you go off-road, your project stays on time. With IP 54-rated resistance to the elements and blinding-fast speeds through Thunderbolt and USB 3.0, you don稚 have to compromise between durability, mobility, and speed.