- Transfer speeds of up to 170MB/s Move big files fast, move a lot of files fast or just make frequent file transfers that much quicker. - Move files up to 10x fater than with USB 2.0 readers The MobileMate USB 3.0 microSD card reader delivers the performance of USB 3.0 - so you can move files faster and get back to all the other things you would rather be doing. - Compact and durable design With its small but sturdy design, the MobileMate USB 3.0 microSD card reader is easy to take anywhere and can hold its own when tossed in your bag with all your other gear. - USB 3.0-COMPATIBLE USB 3.0 compatible The MobileMate USB 3.0 microSD card reader is compatible with USB 3.0 and backwards-compatible with USB 2.0. - Two year limited warranty The MobileMate USB 3.0 microSD card reader is covered by a two-year limited warranty.