The SIIG 2 - port USB Hub (JU - H20011 - S1) is designed to enhance your desktop or notebook computer's connectivity by providing two USB 2.0 ports. This ultra - portable hub supports data transfer rates of up to 480 MB/s and is powered by the USB bus, ensuring low power consumption. It features over - current protection to safeguard both the connected devices and the hub itself from unexpected power surges. The hub allows for hot - swapping of devices, meaning you can connect and disconnect devices without needing to turn off your system. Compliant with USB 2.0 specifications and meeting RoHS standards, this hub is compatible with a wide range of Windows operating systems, making it a versatile addition to your tech setup.