[cook]

Hi

Sorry for a slightly offtopic question. Seeing all talks about USB DACs I figured someone might know the answer to this. I regularly travel to one place where they have this D-Link USB DSL modem for internet connectivity. It never worked for me even after called support and made sure all settings are correct. I'm 95% sure that problem is that my laptop USB ports do not provide enough power for that modem (its powered only from USB, no power connectors). So what I need is a "thing" that takes USB data from my laptop USB port, power from wallwart and feeds it all via a single USB port to the USB modem. Is it possible ?

 

[FallenAngel]

Of course it's possible, and very easy actually. Strip the USB cable revealing 4 individual wires. Cut the power wires (pinout). Make yourself a cheap $2 5V regulator running from any random 6-9V wallwart and use it to power the device.

 

[SysteX]

Yes. You should search for a "powered USB hub".

 

[McFortner]

I second the powered USB hub. I have a 2.5" drive in a USB enclosure that has the same problem on my desktop and the powered hub gets it working fine.

Michael

 

[cook]

Thanks. Was mostly worried that USB data signal is relative to power ground or something like that and just wiring power to wallwart will burn a chip or two.