Is external power needed for USB version? Does it need to be plugged in or is power from computer via USB?
1010662
It just need to be plugged into the USB port of your computer. You will need a fairly good PSU otherwise it will be unstable.
1493737
This was a gift for my son, and he said it works without being plugged in, with being plugged into an outlet, and it works being plugged into a computer. I hope this helps.
197958
You just plug it into the computer via USB drive and set it up that way and you are ready to go. No other power source needed.
459078
It will function without external power. Using external means there is less drain on your (Laptop) power.
1625121
With the USB cable that is included. You can either plug it into your computer or a wall outlet converter (http://www.amazon.com/Wall-Outlet-Converter-Power-Buddy/dp/B00C7GH8UK).
2149350
I use the USB switch with a powered hub. (The switch has no external power.) If you need a powered hub, I don't know. I changed to using a powered hub and have found the hub more reliable than a non-powered hub.
841348
I've got mine plugged into my computer via the USB and that works fine. If you have a computer handy you can do the same.
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.
1291287
It has to be plugged in to a USB port. It works when the computer is in sleep mode but not when the system is off. Good product, no regrets.
95050
Yes it needs power. Be sure and push the on/off butting to turn it on. There will be a small blue light show up for each USB you may have plugged in. I haven't had any problems and love it. Very fast with USB 3.
907288
Hi. With this device, you do not need any external power. The device brings it all included and takes what it needs directly from their computer. It works excellently. Regards. Vincent.
1416837
Although the user manual does not say that it needs a power source, it came with a USB cable. I was not sure why, later I noticed that the device has a mini USB port on the side. I had it connect to my Cable box that has a USB port. The device did not work properly (it kept flickering) without using USB cable. It works perfectly now.
1323544
It's both USB powered AND has an external power supply. It has both. The AC power supply is provided for in situations where the device does not have sufficient capacity to power the Pawtec External 3.0 cd/DVD r/w, etc. device. This is more likely to happen with iPads, cell phones and other lower powered devices. Some netbooks might not have enough power, either. Hence, the product comes WITH an external power supply. Hope this helps.
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
95052
Yes. The manual clearly states that external power is required at all times. USB 3.0 ports are supposed to provide up to 900 mA, each, so requiring an external power source for hubs is pretty much written in stone. Also, it is worth noting that older computer systems probably do not have USB 3.0 ports built into them. My own laptop is a 2011 ThinkPad, and I had to buy an adapter card to get the support.
1301227
Have to be purchased separately. Comes with power and USB cord, nothing else.
1377007
this item is not powered by USB, it comes with it's own power cord. seen in images of the product.