Kensington UH-3000E K33982 USB 3.0 Gigabit Ethernet Adapter & 3-Port Hub Laptop

Gives you a compact dock type solution

There is a socket for additional power if required

i.e Running lots of USB Spindle hard drives

But in general use for mouse/keyboard/printing etc no additional power required

This auction is for the USB 3.0 Gigabit Ethernet Adapter & 3-Port Hub Laptop

No additional cables/ac adapters supplied

Any support/drivers can be found on manufacturers website

Thanks for looking :-)