Does the computer power it or does it use external power?
1889404
I worked ok for me only for a few minutes when powered only by the PC (10-year-old laptop). I used the USB power cable connected to a small USB phone charger/adapter to provide power to the unit. Worked great like that.
987494
Hi there,The power is supplied through the USB 3 cable by the PC or the Mac.And it works perfectly well.As simple as that.Cheers.Bernard
853076
no external power source, it does plug in and run from any 120 volt outlet. hope this helps
1490138
it will operate without power, as long as the device has a power adapter of its own. so mostly, it does require power. my machine still sleeps, but it will disconnect the device abruptly, meaning possible data loss.
1514887
No power source is required.use the included usb cable to connect the hard drive to the computer.
1452763
I don't know!! Sorry, but mine's been plugged in to an outlet the whole time I've had it. PC
515815
It gets all its power from the computer's bus. It does not need power from an electrical outlet.
2055089
Comes w/a split cable -- 1 end goes into a USB port, the other end has a plug w/a green end which goes into a green hole in the back of your computer. I think it gets the power from the USB port, but I'm not sure. It's not battery-operated.
1197663
It only uses the PCI-E slot no power needed it gets its power form the slot. Hope that helps Ed
1817193
No it has three built in outputs (the button to switch one input to the other and then the two USB outs to the computers) on the front there is a DC input, but mine is not pulled into a power source and has been working fine for the last year.
1811180
I don't know. I am not using the power port. My laptop has enough power to the card that everything works fine without an external power supply.
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
1560224
Good question, dont remember if it actually does. I pretty much use it via USB power.
1111844
There are one cable USB to an -Mini USB (http://en.wikipedia.org/wiki/USB) in the packet. Its Powered by the USB, no need for extra power.
23300
No. It gets its power supply from the raspberry itself. No need for external power
1744474
Yes, you use the USB cable for setup on your computer, after that it's just used for power
1346326
There is no external power button. A shortcoming for sure, but what I did was set my computer to startup at a specific time each day in the schedule settings under power control in the system preferences.