Is this hub able to work at all without the power supply? If i only need to use 1 or 2 of the ports?
905917
Definitely no! Without power it's totally dead - like a stone! You must connect it to power and then you can expect it to work - if there is no anything other wrong. If you don't want to use power, you can check another model - http://www.amazon.com/Anker%C2%AE-4-Port-Portable-Aluminum-2-Foot/dp/B00IJ331WY/ref=sr_1_2?ie=UTF8&qid=1416424283&sr=8-2&keywords=anker+usb+3.0+hub. It has only 4 ports and cannot charge devices, but it's more compact and doesn't power connection at all.
672883
You need the 2 ports to power the HDD. Depends on your hard drive model only one port may not be enough.
1213490
Unfortunately you already answered this question. Yes, it will require two separate ports to power this device.
594082
You need to connect the AC power to power this 7 port hub. It come with the unit.
704781
It's got a wall wart, and can deliver about an amp and a half per port to devices, if the devices understand how to ask for it. One thing, is that the power supply walwart only provides 3 amps to the hub in total, so, about half the potential total draw.
625580
No, it doesn't need a separate power supply, it can draw the power from USB port on a laptop. If you intent to connect it to an USB hub, make sure that the USB hub can provide sufficient power. Non/low powered USB hub will not work.
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.
875943
Hi. The stand gets all its USB power from the computer. There's no separate power supply. However, that said, I've connected WD Passport Drives and an HTC Android phone to it and didn't have any problems with lack of power. Usually, unpowered hubs don't have enough *oomph* to keep an external drive going, but this one does very well.
1539578
I'm not the seller, sorry. I'd suggest looking up some installation guides because it can be a little tricky I had to buy a powered USB hub when I got mine.
189289
The power supply plugs into any standard electrical outlet (110-115 V). I have not tried using the hub as a bus-powered device.
687561
The hub has one high output power port on the side, that uses the AC adapter. The other 3 ports seem to run power through the main line without the AC adapter. How much power are you going to need to run you Hard drive, I don't know. I do know that my iPad only will charge with the power plugged in and it hooked into the high output port.
870798
I don't know for certain if the computer connection is cut off. I do know the power is cut off which in most cases would cause what you have connected to not function. I often use the hub in conjunction with a couple of led lamps as makeshift desk lamp when travelling.
862202
It works without power supply when attached devices have little power consumption but peripherals such as an external hard drive that draws power from the port requires the added boost of the external power supply.
903085
as long as the power supply for the hub has power, then yes. it doesn't even have to be plugged into a computer if you are just using it for charging.
2110248
MANUFACTURER ANSWER: Thanks for posting your question here! No, http://www.amazon.com/dp/B005HKIDF2 is a bus powered hub and is not expected to work for your intended setup. We have had other customers who got this product after reading http://blog.jdslabs.com/?p=838 and were disappointed when it did not work. Hope the above information helps! If you need any additional information, please do feel free to shoot us an email at support@plugable.com. We are here to help! Thanks! Regards, Roze Plugable Technologies
1308223
No. Not at all. I use it at work and I'm using all 4 ports with no problems.
1966749
No, it won't work without the adapter. One port wouldn't supply enough power for that.