I bought a powered USB hub for this purpose. It does not come with any instruction and I do not know how to use it. It has 2 USB, regular ones on one end, and one is marked with the icon lightning and red in color. I think this is probably the one should attach to power source? and then there are 4 tails sticking out. I tried to make use of it and it does NOT do anything.

http://www.dealextreme.com/details.dx/sku.13526

@nhanquy: can you guess how to use this thing?

Edit: I kind of figure it out by now. It is directional, so I have to stick it in at the end with the power end. Now I got it.



TIA,

bun