AidenShaw said:That must be why you can't plug your mouse into the keyboard port.
There's no power for the mouse electronics. Especially the optical mice with the red LED.
Well, the keyboard ports are powered, but they're lower power than the other USB ports. A mouse will work, but the keyboard in fact won't charge a shuffle, and won't run some other peripherals that require USB power. They're not useless, but they're definitely less useful than the other USB ports.