Features:
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A USB interface can be extended to the work of four independent USB ports ( three for the standard output port, one for Mini USB output port)._x000D_
Dual USB header entry, (red line only increased power supply) Powerful power supply capability, can connect the computer desk lamp, mobile hard disk, U disk, card reader, voice recorder, digital cameras and other USB devices, and its charge or engage in data connection._x000D_
USB 2.0 high speed interface, backward compatible with USB1.1, USB 2.0 device supports up to 480 Mbps; USB 1.1 device supports up to 12Mbps._x000D_
Plug and play, no need driver, no need external power supply, support hot-plug._x000D_
Put it into the computer, after 1-2 seconds after the green indicator light is off, connecting with the USB device (at work), a long bright light. Pulled out, the indicator light off._x000D_
System support: Win98/Me/2000/XP/Vista/Win 7, Linux2.4 and Mac os 8.5 or later.