(We get this question alot…)
When we use the term ps/2, we are referring to the ps/2 port (6-pin mini-din) originally invented by IBM in the 1980’s. PS2 can refer to the Playstation 2 invented by Sony in the 2000’s.
For those looking to use a USB keyboard and mouse for additional precision in a first-person shooter (and dominate all the n00bs playing with analog sticks), the following can be used to connect their USB keyboards and USB mice to a modern gaming system (Sony PlayStation 4 (PS4), Sony PlayStation (PS3), Microsoft XBOX One, Microsoft XBOX 360).
XIM4 provides the highest precision mouse and keyboard (and more) experience on Xbox One, PlayStation 4, Xbox 360, and PlayStation 3. Unsurpassed quality, ease-of-use, and flexibility, XIM4 is the perfect companion to the even most demanding gamer. XIM4 empowers gamers with the state-of-the-art without bombarding them with unneeded complexity. Through XIM’s unique Smart Translator technology, XIM4 is able to provide unparalleled 1-to-1 gaming precision that consistently performs in every game you play. It’s quick and easy to set up your preferred gaming environment through it’s wireless smartphone and PC configuration tool. XIM4 enables gamers to choose their preferred input devices that suit them best whether gaming at a desk or from a couch in the living room.