"Gain the performance advantage with the Supersonic Boost XT. Supporting USB 3.0 the new standard in USB flash storage; the Supersonic Boost XT provides superior transfer speeds over USB 2.0 with performance of up to 150MB/s. This extra performance makes the Supersonic Boost XT the perfect choice for large file transfers so you can always have your data in a fast paced demanding lifestyle" "Hi Speed USB 3.0 Compatible (backwards compatible to USB 2.0) 8GB and 16GB: Up to 90MB/sec Read; Up to 30MB/sec Write 32GB 64GB 128GB and 256GB: Up to 150MB/sec Read; Up to 30MB/sec Write Easy plug and play functionality The rubberized housing provides a durable and rugged exterior that safeguards the drives from the elements. It is protected from any shock and physical damage as well as water resistant offering protection from various elements. Compatible with Windows 8 Windows 7 Windows Vista Windows XP Windows 2000 Windows ME Linux 2.4 and later Mac OS9 X and later Advertised capacity is unformatted."