Transfer content up to 9x faster over traditional action camera USB cables with included USB 3.0 reader</br>Great for 4K recording in aerial and action cameras</br>High-speed performance - leverages UHS-II technology (U3) for a read transfer speed up to 1800x (270MB/s)</br>Includes an SD UHS-II adapter for easy transfer between devices</br>Backwards compatible with UHS-I devices</br></br>Product Description</br></br>Designed for your sports camcorder?? tablet?? or smartphone?? Lexar Professional 1800x microSDHC/SDX UHS-II cards make it easy to quickly capture play back?? and tran