Classic design, beautiful casing, hot swappable, low power consumption. The product is suitable for U disk, card reader, USB mouse, USB keyboard, scanner, digital camera, digital video camera, USB sound card, hard disk box and other equipment, extending 4 USB interfaces, giving a power supply up to 500Ma, using the second generation USB HUB controller, no driver, plug and play, supports up to 127 USB devices, all using first-class high-quality electronic devices to ensure stable product operation.