This Maplin 30 Pin Samsung Connector to USB-A Cable is typically used to connect a Samsung Galaxy Tablet to a computer for the transfer of files or for powering the device which is also an option with a compatible USB to AC adapter. This cable is not to be confused with the Apple 30 pin charge cable, as the two are not interchangeable. When used with a USB 2.0 port, the maximum transfer speed of this cable is 480Mbps.