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USB 2.0 high-speed interface, supports data rates of 1.5/12/480 Mbps
Backwards compatible with USB 1.1
Automatic connection and speed detection
Plug-and-Play; hot-plugging; driver free
Over-current detection and protection
Max output is 2.5W(5V/500MA) across all 4 ports
Check your device loading current when used for charging (e.g. iPads/Tablets) or for high-power devices (e.g. hard drive); insufficient current may lead to slow charging or other failure.
Product Description Amazon Basics 4-Port USB to USB 2.0 Ultra-Mini Hub Adapter From the Manufacturer Amazon Basics