Tera Grand - USB 3.0 Docking Extension Cable with Two USB Ports - One for Data, the other for Power - with Magnet inside Super Speed USB3.0 supporting 5 Gbps data rate over tentimes of USB2.0 performance Backward compatible with USB2.0 and 1.1 Docking Connectors: USB3.0 data interface, and USB3.0 Power to charge compatible deives With magnet on bottom of USB A/F side Hot Swappable, plug and play