MobileSharp1PC New 3 Port USB 2.0 Hub 480Mbps Charger Adapter For iPhone 4G 3G 3GS/iPod/Micro (Black) 3 USB 2.0 ports. Plug and play. Supports up to 480 Mbps transfer rate. Fully compatible with USB 2.0 specification, backwards compatible with USB 1.1. Especially for iphone/ipad/ipod, notebook and travel.