Im going to teach you step by step on how to increase the number of usb ports available on your computer. This could cost you under $10 or free.
Step 1: materials
TOOLS and MATERIALS:
solder and solder iron (You do not have to solder, but it is recommended)
needle nose pliers
1 usb cord with a male end.
2 or more(I used 2) usb female ends
You can get these materials for under $10. I had these laying around. You can go to the goodwill and pick some up, or a store, or a garage sale.