Power source? Is this device powered solely from the USB port, or does it require an A/C adapter?
1727979
It's supposed to need two USB ports to power it.source: http://reviewstash.com/viewtopic.php?id=1046
1727980
This device is powered by the USB port and require more power than a notebook USB can supply, so a powered USB hub is needed to obtain the best performance with a notebook.
1727981
However it works fine with a single USB connection as long as your PC or Laptop supplies the "rated" voltage and current for a USB 2.0. I've used ours for years on a single cable with no problems.... however your mileage may vary
1223826
Mine did not come with an A/C plug as the previous post says. Mine uses a USB cable - one end into the device and the other to a USB port on your computer. Doesn't take too long to charge up.
245058
Oh, power options are rechargeable batteries or 3 AA batteries. I have not tried charging from the pc usb port yet.
2149499
Just USB powered but I haven't had any issues with it. Albeit, I only use it on rare occasions for work
10476
It does not provide power to any device. It is powered but does not provide power (other than through the USB ports)
498032
Hi, Thank you for your question. It uses 110V AC power. It is not USB powered. Thank you.
1547062
It requires auxilliary power. USB won't power it. But it comes with a power pack.
1749839
If the device has a cable with a USB tip, the AbsolutePower will provide power and charge from an A/C outlet. It's not a backup battery source, though.
1168615
This is run off a single O cable run directly from the battery. It produces AC current at 110V . There is a USB outlet as well. I have been very happy with mine, it sits under the backseat of my truck to keep my computer and navigation systems working.
1446522
It is powered by the USB port on your computer. There is no AC connection to worry about.
1517413
when connected to pc, the USB port gives this unit the power needed to operate, no ac adapter needed. the usb cable will come with 2 connector, it's recommended that both of them are connected given the fact that one of the connector is an extension from the other connector for some extra energy.
1191289
No, the device charges with a micro-USB, icluded. The other end IS USB so if you want to charge AC you will need a USB to AC adapter.
685899
The device uses an external power supply. If you have needs other than 110V, you'll have to supply you own.
333862
No external power source needed. Just simply plug in the 3.0 USB to the PC and you are set. :)
1352718
No sadly it can't be powered by USB. You have to either use the AC adapter or use 4 AA batteries.
2105220
Hi. This is a A/C powered unit without an adapter. Works great for transferring audio cassettes into my computer through an A/D adapter. The pitch control works well to adjust the speed for best clarity.
1227113
The device will work (albeit give less cooling) with 6V, but it will draw too much current (roughly 5 amps!) to be powered from a usb supply.