usb taking to much power ?

It is impossible for us to help you without knowing what Mac product you have, what Mac OS version it is running, and what kind of USB devices you are trying to use.

Also, this forum is for pre-1998 Mac products that pre-date USB and you will get very few views here. Once we know what you have, we can ask the Hosts to move you to the forum where you can get the best help for you Mac product.

I have this problem all the time, Insted of charging your phone with your computer, use an outlet.

Get a new one

Do not plug it into the keyboard USB. Plug it directly into the computer.