Does this device provide power at all, if you do not use the external power supply?
2043310
The manufacturer says this: When the hub's power adapter is not connected, the hub is capable of running purely from bus power (from the host PC). When a hub reports itself as bus powered to the OS, the OS looks in the USB descriptors for every attached device, sees how much power the device reports that it needs reserved for it, and pops up a error (and possibly disables devices) if the total amount of power requested exceeds what a bus-powered hub in theory can count on pulling, which is 500mA for USB 2.0/1.1. We recommend always using the power adapter for best results.
2043311
No, it does not. It won't function as a hub without the power source either (at least not to devices that require power, eg, my WiFi card)
2043312
If you have it connected to a usb source like a PC..Yes it does, but I think only at whatever the source output is. It works much better with the 2.5 amp power supply attached.
577168
I only use it with external power, but I believe I recall reading that it can not be powered by USB.
23300
No. It gets its power supply from the raspberry itself. No need for external power
853076
no external power source, it does plug in and run from any 120 volt outlet. hope this helps
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.
2218700
I have no idea, but I would think not. The device simply gets power from the USB port. It does not interact with the computer at all.
576352
Yes, it has a power port for an external power source, although I have not yet tried to use it.
1255034
It appears to work powered by the AC adapter or the USB 3.0 cable alone. My USB 3.0 external hard drive works without the AC adapter. However in order to charge attached devices like my mobile phone, the AC adapter has to be plugged in.
1026130
No additional power supply included because the device is powered thru the USB connection.
92191
This unit is powered by the USB connector on your computer. No external power supply.
13653
Yes. The device is shipped with a power supply that plugs to your wall outlet.
320496
No, it does not include power supply, you can use whatever power supply you would like with the right plug. Just make sure that the voltage of the power supply is correct for the device you are powering.
1648456
YES. It draws no power unless a device is attached. Cables only attached drew no power. I used a Kill A Watt to confirm. Hope this helps.
2106652
Ron....no, the hard drive is a plug-n-play, no external power source needed.
1770146
Not sure exactly... but I didn't need to get any additional power supply to make it work... just plugged it in.. and has been working great since purchase.
1272887
No, it will need to get power from USB cable. Meanwhile, it will also need to get signal and drawing through computer's support.
1790453
Nope, it doesn't provide power. It works for my purpose but really doesn't add much value in my opinion.