This is definitely a good buy if you need to expand your USB ports. It's small, cheap, and accepts external power (although my kit didn't include the power supply needed for it). It works well even without an external power supply. I can use it to charge my HTC Touch, Philips VOX 150 and Philips GoGear 4GB without an external power supply. It also included a cable that allowed it to be connected to two computers. Although not sure why you need it.
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