When you connect the Smart USB into your Smartphone you can transfer data, play music and video. There is no need to install any software. The device works with Samsung Galaxy Note, Galaxy Nexus, Galaxy SI/II/III/IV, Motorola XOOM, TG01,Nokia N8,E7 and other Cell Phones and Tablets which support the OTG Function. Smart USB also works;as normal Flash Disk with PC or Notebook.;– Capacity: 256MB/512MB, 1GB to 32GB;– Compatibility: Android/Windows/OS X