Delkin Devices USB Bridge for Computer-Free File Transfers (Model DDUSB-Bridge) Transfers data between 2 USB devices (slaves), without requiring a USB host (master) or a computer Supports USB High-Speed (2.0) devices at USB Full-Speed (1.1) transfer rates (up to 480 Mbps) Sleek, lightweight design, battery powered for use absolutely anywhere (2 AA batteries included) Easy 3-button operation: power, transfer, and verify; offers LED confirmation and feedback Supports FAT12/16/32, PTP and ISO9660 file formats