The OLOPKY USB Hub expands connectivity with 1x USB 3.0 port, 2x USB 2.0 ports, and slots for TF and SD cards. It offers plug-and-play functionality without needing drivers and supports data transfer rates up to 5Gbps, making it 10x faster than USB 2.0. Compatible with various systems including Windows and Mac OS, it features overload voltage protection for connected devices.