MULTIPLE USB PORTS: This USB 2.0 hub expands one USB 2.0 port to seven additional USB 2.0 data ports, allowing simultaneous connection of multiple USB devices such as hard drives and other peripherals. INDIVIDUAL SWITCHES & LEDS: Each port features an independent switch with seven blue LED indicators to show power and connection status. INTELLIGENT PROTECTION: Built-in safety features include surge protection, over-voltage protection, over-current protection, short circuit protection, over-heating protection, and reverse current protection to safeguard connected devices. WIDE COMPATIBILITY: Supports various operating systems including Windows 10, 7, Vista, XP, 2000, Mac OS X 10.2 and higher, and Linux 9. NOTE: This hub must be connected to a computer to function and is not designed to be used as a standalone charger. It is intended to expand the computer's USB interface and may not provide sufficient power for high-power devices such as tablets.