USB hub,7-Port USB Hub, 3.0 USB Splitter with Individual On/Off Switches and Lights, 4ft/1.2m Long Cable USB Extension for Laptop and PC Computer

System Requirements Windows (32/64 bit) 10 / 8.1 / 8 / 7 / Vista / XP, Mac OS X 10.6-10.9, Linux 2.6.14 and above Mac OS X Lion 10.7.4 users should upgrade to Mountain Lion 10.8.2 or later to avoid unstable connections. Compatibility 2.4GHz wireless devices, MIDI devices and some USB 3.0 devices may not be supported. Try using the host port or a USB 2.0 connection. Please NoteFor a stable connection, don't use this hub with high power-consumption devices, and the devices connected to the USB 3.0 Hub must not exceed a combined current of 5 volts 900 mAh. External hard-drives should be connected to an external power source. The hub will sync but not charge tablets and other devices which require a higher power input.