Acer USB 3.0 Hub Expansion Dock, High-Speed 4-Port Hub Adapter for Desktop Computers And Laptops, Multi-Port Converter Extension Cable

Supports 5V power supply with additional power provided through external power port for stable and quick operation

External power port enhances power output by 2 times for stable operation of various devices

5V2A power supply port for enhanced performance of devices like card readers/USB drives, mice/keyboards

Overcurrent protection to prevent overheating

Computer USB-A port provides only 4.5W (max) power, while the power supply port offers up to 10W (max) for power supply only, not data transfer. Data sourced from acer laboratories, results may vary depending on testing environment and devices used.