Can I plug my mouse into my keyboard?

In general, you can’t plug in a mouse into your keyboard. Most popular keyboards and mouses have a seperate USB cable to the computer.

 

Example: USB ports on a computer. Usually, most USB ports are in the of your back of your computer.

USB ports on the front of the computer.

 

But some keyboards offer Extended US ports on the keyboard so that you can plug-in USB mouse inside or USB key.

Example of a keyboard: