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.
- 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.
- 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.
- You can remove other power hungry USB devices, so that you can use the USB drive.