USB - When I plug in my Integral USB Flash Drive a message states that more power is needed. Why?

  • Each USB device (such as an Integral USB Flash Drive) that you plug into a PC or Mac draws power from the system. Each device draws the power consumption that it needs to operate. Each device is slightly different in what power it draws.
  1. If you use a USB hub so that you can plug in many USB devices, then this will also be quite a drain on the power from the PC/Mac. The more USB devices you have, the more power you are drawing from the PC/Mac and there will come a cut off point where the PC/Mac cannot output enough power to support all the devices.
  2. We suggest that if you are connecting a USB hub to attach more USB devices to your PC/Mac then you will need to independently power the USB hub (e.g. plug into mains power) so that it will have sufficient power for all USB devices attached to it.
  3. You can remove other power hungry USB devices, so that you can use the USB drive.

 

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