Technical parameters:
1. Module Operating voltage: DC 5V
2. Four USB expansion interface can work simultaneously.If just one work that output current can up to 500mA.
Features:
1. Second generation USB HUB controller2. Directly connected to the computer without an external power supply, easy to use.3. Computer automatic identification install, no drivers, plug and play4. Built-in current overload and short circuit protection device5. Support USB2.0 speeds up to 480Mbps, backward compatible with USB1.1