is this unit powered by an a/c adapter or through the USB?
1179563
There are two cords that connect at the back of the unit. One goes to an electrical outlet. The other goes to the USB port on the computer. There is an off and on switch on the back. The unit can be turned off when not in use. When it is turned on you can hear the fan running, but it isn't that loud. I assume the a/c cord powers the unit and the USB cord transfers the information. Hope this is helpful.
1179564
There are two cords that connect at the back of the unit. One goes to an electrical outlet. The other goes to the USB port on thecomputer. There is an off and on switch on the back. The unit can be turned off when not in use. When it is turned on you canhear the fan running, but it isn't that loud. I assume the a/c cord powers the unit and the USB cord transfers the information.Hope this is helpful.
1179565
Ashley mine is powered by A/C. The only purpose of the USB is to connect the unit to your computer. I chose this one because I have read that USB powered units lack power to perform at fast speeds. I am very happy with how mine works. Hope this information is helpful.
1179566
The drive is powered by ac with a straight power cord. More reliable than adapters. USB for connectivity to pc.
1179567
you plug it into a wall outlet and then into the computer with a usb cable. so the power does not come from the computer
2222649
There is no AC to DC adapter on this unit. It plugs directly into a 110VAC receptacle.
767753
It comes with an A/C adapter so just plug it in. BTW, I leave it on 24/7 on the high setting, it is very quiet and it works great
54915
I only charged it by USB and Solar. I don't remember having an AC adapter for it.
1102285
AC adapter. It's two pieces actually. You have a Mini USB to USB then a USB to US outlet.
652062
it is AC powered. however, I have had problems with my wireless speakers due to interference. they tend to cut out a lot. can't figure out where it is coming from.
220483
The unit is charged via micro USB from an external source. (PC, AC Wall charger, etc...) I hope this helps to answer your question.
1323545
Both. You can use USB only, but if you need more power, you can use an ancillary A/C power cable. I have not needed to use the A/C cable with mine, but perhaps I have not stressed it as much as other people have.
1618421
No - I think you're just looking at the a/c adapter. It has a battery but it charges off of a plug (shown in photo).
59497
It is powered through the USB port. Just plug into the USB port and it is ready to work.
1154681
Yes, the unit has a AC power adapter since it is not a USB-powered device. We'll have to verify the amperage of each USB port.
2168063
This unit does not have an A/C adaptor. We use it in a factory and it has held up very well.
572924
Yes, the quick start guide mentions an A/C adapter may be used but is not included.
2215726
It can plug into any USB port. So, plug it in to a computer, or it will work with any a/c adapter like the ones that come with cellular phones.
1047569
You either use the ac adapter OR batteries. The a/c adapter won't charge up rechargeable batteries. Would have to recharge batteries through a different device.
1330377
This is powered by the a/c adapter, not the USB. I think it may know when to turn off and on because its hooked up to the computer. When the computer is on, it is on, and vice versa.
183096
It is powered by usb through your computer. No other power supply is needed.