4-port USB hub with clock Logo printings are accepted OEM orders are welcome Supports plug-and-play function Low power consumption Suitable for U-disk, card reader, USB mouse, USB keyboard, scanner, digital camera and USB sound card Maximum power supply of each port: up to 500mA Adopts the second generation USB hub controller No drivers is needed Supports 127 USB devices at most Adopt grade A electronic component to ensure the works steadily Compatible with USB 1.1 and 2.0 Transfer speed: 480Mbps Power: USB 5V/600mA Operating temperature: 0 to 70°C Deposited temperature: 10 to 90°C Operating humidity: 10 to 90%, non-condensing Deposited humidity: 10 to 90%, non-condensing Consumed current: 50 to 60mA