CG0116B 4 port model Key Hub (CZH-H015) design and each interface can be individually controlled With external power Supports hot swapping Low power consumption Suitable for USB flash drive, card reader, USB mouse, USB keyboard, scanner, digital camera, digital camcorder, USB sound card, hard drives and other computer peripherals Each port’s power supply is up to 500 MA Transmission Rate: 480 MBPS Adopts second-generation USB hub controller Plug and play Adopts high-quality electronic devices to ensure a stable performance Working Indicator: Blue