Four USB 1.1 ports a type female connectors downstream one USB b type male, connector upstream with a cable
* Support both full-speed 12Mb/sec and low-speed 1.5Mb/sec * transfer rates
Chains up to 127 USB devices
* Individual port over-current protection
* Provide up to 500mA per port sufficient for diverse devices
* Truly plug-and-play automatic installation
* DC jack for selectable

Daily Tips:

How to make your iphone brand new again?

You have used your iphone for maybe 2years,and the shell is too old,you even don't want to use it again,you Even want to buy a new one to replace it .

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