The Kanguru QS3 features the latest in external hard drive technology with USB3.0 connectivity for the fastest throughput ever in an external hard drive. The QS3 can take on your most demanding data transfer tasks with ease! USB 3.0 takes 2.3 hours to backup 1TB compared to nearly 14 hours with USB 2.0 with no impact on your CPU system performance. Video streaming, photo editing and production, large-scale database access, the QS3 can do it all! The QS3 is also backwards compatible with high speed USB2.0 for quick and convenient connectivity to virtually any PC.