MULTIPLE USB PORTS: This USB 2.0 hub can expand 1 USB 2.0 port into 7 additional USB 2.0 data ports for hard drives or other USB devices, which can be used simultaneously. INDIVIDUAL POWER SWITCHES & LEDs: Each port has its own individual power switch, 7 blue LED indicators show power and USB connection status. INTELLIGENT PROTECTION: USB Hub has built-in surge protection. Over-voltage, over-current, short-circuit, overheating, and back-current. Thus, your USB hub always protects itself and all your connected devices. WIDE COMPATIBILITY: Supports multiple different interfaces such as Windows 10.7, Vista, XP, 2000/Mac OS X 10.2 and higher/Linux 9. NOTE: This hub must be connected to a computer to be used by other devices. It is not intended to function as a standalone charger, but only expands the computer's USB interface. It may not be able to power devices with high power requirements like tablets.