USB Hub acting strange

[bigal50]

When I attach my USB hub to my computer and I plug the hub into the electrical out  and then plug a USB flash drive in the hub I get the following message:

! USB Low Power Notice !
The USB device cannot operate because it needs more power than is available. To correct this problem you can:

1- Plug the device into and electrical outlet if it has a power cord.
2-Unplug the device and plug it into another USB port on your computer or other device that is plugged into power  cord.

I tried removing the USB flash and plugging it into a another port on the Hub but still get the same message. Help ??!!

[Accessless]

Are you sure that the hub is receiving power from the mains (usually indicated by a light)? Is it definitely plugged in at the socket and at the unit? Are you using the correct power adapter?

[Salmon Trout]

This is a Mac, right?

[bigal50]

All connections are correct and yes it is a Mac..................why ??

[Salmon Trout]

! USB Low Power Notice !

This is a Mac-specific message. It is quite common apparently. Maybe you should post in the Mac section.