Do you need to use the power adapter for the hub to work or is it dually powered?
76210
To answer your question......the computer was able to recognize the peripheral regardless of whether the ac adapter was plugged in or not. This suggests that it will work either way, HOWEVER I would not expect it to be reliable without the aux power supplied by the ac adapter. This has been a great performer!
76211
You need to use a power adapter. Several of the ports no longer function (side note).
259145
In general, I have found that the USB hubs that supply a wall-wart for power to the hub, do indeed NEED the power to the hub.Dick
887106
Ok it has 2 usb plugs that need to be plugged in at the same time? If this is so will having a usb hub running usb3 work (my hub has the duo like plug side by side on one plug)
1966743
NO! It is a powered hub. Having said that, I love these puppies. I've got 5 total in use and highly recommend them. (See my earlier review.) on USB 3 items, they'll draw power from their own power supplies and the computer itself, you DON'T ever want to take a chance of burning out the USB on your puter or the device (Like hard-drives) due to a low power situation, EVER!The plugable 7 port hub is lighted to let you know when the device is properly connected and powered, on each port.
744477
The base hub works best plugged in. The hub you can remove does not have a way to recharge. Does not have a battery I don't think.
981879
No, it will only work with a computer and cannot be used as a hub for power.
355998
Nope. It needs to be powered. I could only get one item at a time to work. If I had 2 or more things plugged in, it wouldn't work at all.
368271
do you have a version of this hub that has or can support at least 12V and (4A or greater amperage) or do I need to buy just the power adaptor that can support at least 12V and (4A or greater amperage)
765451
You will need an adapter to to fully use this device. What you lose is the powered USB hub. What will still work (provided you have the motherboard ports for these items): USB 3.0, card reader, Esata.Most likely the hub will also work - it just won't be powered.
381876
This hub is underpowered by almost 45%. USB 2.0 ports should be able to pull 500mA, so with 7 ports the AC adapter should supply 3.5 Amps. It only delivers 2. Almost every powered hub on the market seems to be similarly underpowered.
1061613
There are 2 power sources. You can either plug in to USB or the wall for it to work.
165461
This is strictly USB hub. I have been able to use the ports for both power and data using a Windows computer. I have been very happy with this hub.
2020841
The hub itself can use an ac adapter (not included) however it is not required from my experience. But, if your external drives use an external power such as a ac adapter then yes you would still need the power for those drives but not for the usb 3.0 hub itself. You would only need to power the hub itself for power hungry applications. I currently have a WD Ultra Passport external drive (which requires no external power) and two external disc drives attached to mine (one lightscribe dvd writer, and one asus bluray writer drive) each of which is powered seperatly by ac cord. My 4 port Sabrent USB 3.0 Hub has no power to it other than the computers bus power. I hope this helps. Cheers! The hub itself can use an ac adapter (not included) however it is not required from my experience. But, if your external drives use an external power such as a ac adapter then yes you would still need the power for those drives but not for the usb 3.0 hub itself. You would only need to power the hub itself for power hungry applications. I currently have a WD Ultra Passport external drive (which requires no external power) and two external disc drives attached to mine (one lightscribe dvd writer, and one asus bluray writer drive) each of which is powered seperatly by ac cord. My 4 port... » Read More The hub itself can use an ac adapter (not included) however it is not required from my experience. But, if your external drives use an external power such as a ac adapter then yes you would still need the power for those drives but not for the usb 3.0 hub itself. You would only need to power the hub itself for power hungry applications. I currently have a WD Ultra Passport external drive (which requires no external power) and two external disc drives attached to mine (one lightscribe dvd writer, and one asus bluray writer drive) each of which is powered seperatly by ac cord. My 4 port Sabrent USB 3.0 Hub has no power to it other than the computers bus power. I hope this helps. Cheers! « Show Less
841760
My hub came with the AC adapter that I need to just plug into a standard AC outlet. If your came without the adapter I would contact the vendor addressing the problem.
533765
It can be powered either way. A power adapter is included in the box as well.
972717
yes. It's a fairly high powered hub. Works best if plugged into a USB 3.0 port on a computer.
352172
The USB hub doesn't need one for most devices, the AC adapter that comes with can also easily be replaced with a universal one you buy locally.I am using it just with the USB power fine.