The JUH345 high-performance USB™ 3.0 4-Port Harmonica HUB allows up to four USB™ 3.0 devices to be connected simultaneously at a transmission speed of 5 Gbps, while still providing connectivity and support for USB™ 2.0 (480 Mbps) and 1.1 (12 Mbps) devices. It works with high-bandwidth SuperSpeed USB™ 3.0 devices, such as external disk drives, high-resolution webcams, video surveillance cameras, digital video cameras, multi-channel audio and more. In addition, it supports fast charging B.C v1.2 up to 2A for smart phones, tablets and iPads.