Silverstone's External Port EP01 is created to easily add additional USB 3.0 ports to your system. Up to four USB 3.0 devices can be connected and with its Battery Charging 1.2 compliance, the EP01 can charge mobile devices faster than standard USB ports. The built-in magnet allows you to attach EP01 to any iron surface making it a very versatile hub for anyone looking to add additional USB ports to their system.