hub works without external power supply?
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.
95048
Yes, you have to connect this hub with a power adapter. The power from the usb port of your laptop will not be enough to power the hub.
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
816726
When the hub is on and the computer is off, the attached devices are still being powered. The blue lights are to indicate that the port is in use. You have to manually turn the hub off to cut power to your attached devices.
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.
1698085
Right. This is a powered hub that is only connected to the MBP or what ever other computer via thunderbolt. It doesn't send power for eh computer itself. Some USB devices such as the SuperDrive and some hard drives are not able to get enough power from the hub, and must be plugged in directly to the MBP.. Overall though I am thankful for this hub and it works very well.
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.
981879
No, it will only work with a computer and cannot be used as a hub for power.
459078
It will function without external power. Using external means there is less drain on your (Laptop) power.
95049
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.
1966748
Yes. However it depends on the device you are plugging in. If the device is BUS powered, then you will need this HUB to be plugged in a power source as it will need to send power to the bus powered device (for example flash drives or USB powered Mics) If the device has its own source of power (like a camera or a powered external hard drive) then you do not need to plug the HUB into a power source and can serve as a pass through.
63639
My fan did not work coming out of the box so I never had a chance to use it with all 4 USB ports supporting devices. From reading other reviews, unless you have an external power source, it looks like the hub does not have enough power to support 4x power-hungry devices.
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.
2229086
my hub works great i had it for nearly 3 months now just have to make sure you get a power supply that can handle the load
1076791
I've never tried it with a hub. But, I have used it with an extension without any issues.
1539736
I can't answer that I just got the plug and not the hub. I ended up buying one in a local computer store and ie T works excellent
2097576
David, I am going to guess you probably have a defective one, or the power supply is not providing power, do you have a green light? I use all 7 ports, but if I was to unplug it it would fail, if you do have a green light than send it back as it is having trouble, also I would not recommend keyboard / mice, while I have not had trouble for short periods of time, when I went long term sometimes I would need to reset the hub to find the device. While I would not recommend it, in theory you can daisy chain these things up to like 122 devices, but I would urge no one to do it as I have no idea how it would go on powered hubs like these