Does it have internal or external power supply? I live in a 220 volt country. If it has external, like a laptop, no problem.
183096
It is powered by usb through your computer. No other power supply is needed.
636387
The unit does have an external power supply. Unit works well, no complaints here.
92191
This unit is powered by the USB connector on your computer. No external power supply.
875019
It comes complete with an external power source. You plug the external power source into any standard outlet. There is a wire attached to the source - I think it's about 4 feet long, but I never measured. Plug the wire into the unit, and you are good to go. I ***BELIEVE*** that it is self-powered through the USB input port, but I always use the external power supply, as it takes the load off of the power supply built into a laptop or desktop computer. NOTE: You can use a standard household extension cord to reach a wall outlet. Plug the power supply into the extension cord, then plug the cord into the outlet. It comes complete with an external power source. You plug the external power source into any standard outlet. There is a wire attached to the source - I think it's about 4 feet long, but I never measured. Plug the wire into the unit, and you are good to go. I ***BELIEVE*** that it is self-powered through the USB input port, but I always use the external power supply, as it takes the load off of the power supply built into a laptop or desktop computer. NOTE: You can use a standard household extension cord to reach a wall outlet. Plug the power supply into the extension cord, then plug the... » Read More It comes complete with an external power source. You plug the external power source into any standard outlet. There is a wire attached to the source - I think it's about 4 feet long, but I never measured. Plug the wire into the unit, and you are good to go. I ***BELIEVE*** that it is self-powered through the USB input port, but I always use the external power supply, as it takes the load off of the power supply built into a laptop or desktop computer. NOTE: You can use a standard household extension cord to reach a wall outlet. Plug the power supply into the extension cord, then plug the cord into the outlet. « Show Less
613611
Hi Jereld, it is an 110 volt AC only, I don't think you can have an external power supply. You would have to run a cord....
160511
The external charger does show 110~240. I believe any charger you use to connect it to should control the voltage and or amperage. I use a USB connector to my lap top generally so I know the output is not very high. Charges fine.
459078
It will function without external power. Using external means there is less drain on your (Laptop) power.
1765961
I guess there is a external power input, but it does not come with an adapter. so pretty much batteries only.
1434259
Short answer: No. Not unless it was built for Europe.It uses transformers in the power supplies and there is no external switch 120 to 220.If you want to use it at 220 and it was built for 120 you need an external 220 to 120 transformer (do not use a switching down converter, it will generate a lot of noise).
984015
No external power supply is needed. It is "plug & play". It gets power from the computer's ExpressCard/34 slot.
306864
It needs a 12v external power source to work. It doesn't have internal batteries.
1917844
It came with a USB power supply. The power supply is marked "voltage input 100-240 VAC".
836252
The item is shipped without a power supply or any info regarding power supply requirements. I would have returned the one I bought, but, due to circumstances, I did not try to install the unit before the return period had expired. Sorry I can't be of more help, but I am stuck too.
1842988
It uses 9V power adapter. You can use any. Mine was supplied with a wide-range adapter but I was dumb enough to plug it in 220V socket without checking it. And it's been a while until I realized. So, no issues.
1766775
US version comes with 110V/60Hz external power supply. If you are using in a 50Hz region (hope Japan is 60Hz), have to change the driving pulley to a 50Hz one.
413563
Yes, it comes with an external 90 Watt power supply. It is efficient and silent.
647544
None... However, you must USE a separate power supply for the adapter. You must use at least 5 volts @ 2 Amps or 2000 mili-Amps or higher. It is use to power up what ever device that you going to use. Having a USB to power cord which came with the adapter is NOT good enough. My adapter plugs in deep into my laptop. I have problems with some USB devices because of the thickness of the USB end. It gets in the way of the laptop case. I use an extender to help resolve that problem.