No, this is not a wheel for a sports car. It’s an inexpensive little gadget (under $25) that you plug into the USB slot (called a port) which looks like a narrow rectangle at the back of the computer.
This port is where you would normally connect your digital camera, web cam, flash drive, or even some of the newer printers. Reaching to the back of your computer to plug these things in can be difficult, so the cord of the USB hub is attached instead and then extends to the front of your desk for easy access. Mine has 4 USB slots, so I simply plug my flash drive into one of them and never have to climb around my computer again, which is important at my age.