The JLC USB 3.0 4-Port Adapter is designed with a compact hub that saves valuable space. It automatically switches between self-powered and bus-powered modes, offering flexible functionality. Featuring one USB 3.0 port that supports High-Speed (5G Mbps), Full-Speed (480Mbps), and Low-Speed (12Mbps) USB device profiles, it also includes three USB 2.0 ports with Full-Speed (480Mbps) and Low-Speed (12Mbps) profiles. This adapter is plug & play and hot-swappable, ensuring ease of use without requiring additional drivers. It is fully compliant with USB versions 1.1, 2.0, and 3.0, providing broad compatibility.