This is a USB 3.0 hub made by ELECOM. It's an ultra-thin 4-port model, convenient for use on your desk or for carrying around. **Key Features:** * USB 3.0 compatible (up to 5Gbps) * USB Ports: 4 ports * Ultra-thin, slim design * Side-port design to prevent interference * Backward compatible with USB 2.0 / 1.1 * Bus-powered type **Model Number:** U3H-A416BBK **Color:** Black **Supported OS:** Windows / macOS (Please check the manufacturer's official website for details) \* To use USB 3.0, the connected devices must also be USB 3.0 compatible. \* Connecting multiple devices with high power consumption may cause unstable operation.