HyperX Pulsefire Mat RGB is a mouse pad that lights up because gamers like flashy things
Remember mouse pads? If you are an older computer user you surely do, but younger folks may have never seen one before. You see, back in the day, mice had a little rubber ball in the bottom that made it work. A mouse pad was a piece of material that went on your desk (and then under your mouse) to make the ball roll better and possibly help keep it clean.
With the invent of optical and laser mice -- and the ultimate death of the aforementioned rubber ball -- mouse pads largely became unnecessary. After all, the new mice often worked perfectly fine on the surface of a desk without such a pad (except, maybe, for glass).