Charges up to 4 devices simultaneously using USB (Universal Serial Bus) connections. USB (Universal Serial Bus) connection to charge iPads & other tablet PCs. Creates the perfect angle for typing or viewing the screen. Holds the tablet in portrait or landscape position. Extra short cables included (Mini USB (Universal Serial Bus), Micro USB (Universal Serial Bus) & Apple 30-Pin) keeps your original cable free. Wire spool inside to avoid messy cables.