The Sanho iUSB Port (White) is designed to connect to a USB storage device including a USB hard drive or flash drive and wirelessly make the contents available on an iOS, Android or Wi-Fi enabled device. It allows you to stream 3 different HD movies to 3 devices or perform two-way file transfer with up to 8 different devices. The iUSB Port doesn't require any Internet, computer or subscription. The unit features a built-in battery for easy portability. Any FTP/SMB/uPnP/DLNA app can also connect to the iUSB Port for two-way transfer.