Includes slot-to-slot read/write/copy and USB mass storage capabilities, Compatible with CompactFlash, Microdrive, Magicstor, Memory Stick, MagicGate, SecureDigital, MultiMedia, XD and TransFlash, no power supplies or adapters required, Supports automatic card detection and data transfer speeds up to 480 Mbps, Eliminates need for direct connection of media device to save battery power , Windows and Mac compatible, hot swappable, plug and play, Three-Year Warranty.