USB powered (no external power or battery needed) * USB 3.0 - up to 5.0Gb/s data transfer speed * Backwards Compatible - with USB 2.0 * Compatible with :SD, SDHC, SDHC UHS-I , SDXC, SDXC UHS-I microSD - microSD, MicroSDHC, microSDXC, Memory Stick/M2, Memory Stick PRO, Memory Stick Duo, Memory Stick PRO Duo, Memory Stick M2 * No additional software installation required.