If you have a dual monitor setup and switch between 2 computers (PC, laptop, etc), this will help you swap between the 2 easier. I moved away from a switch setup with more monitors, so I no longer need this.
Bought this from Amazon, here's the original link
https://www.amazon.ca/gp/product/B07KN4J2XD/ref=ppx_yo_dt_b_asin_title_o00_s00?ie=UTF8&th=1