The USB 3.0 Hub with active repeater cable that enables you to connect the HUB to a USB device up to 40m away. This HUB+Repeater Cable supports data transfer rates up to 5Gbps and is fully backward compatible with USB 2.0/1.1 devices. Additional DC-Jack is designed for devices which need more power, such as USB HDD and High power device like Daisy-Chain.