Playing with a keyboard and mouse on the PS4 can be an expensive game, with the best accessory for the job being the HORI Tactical Assault Commander Pro (TAC Pro) for $130. It is officially licensed by Sony and as such would be an accepted accessory in their online games. While allowing Keyboard and mouse is a grey area, especially for the competitive play like in Overwatch or Rainbow Six, It’s worth mentioning here that there is a minor possibility this can get you banned. If you are ready to go, find out How to Use Keyboard and Mouse on PS4 Without Adapter.
If you haven’t got the money to spend on licensed PlayStation accessories, then you might consider a DIY solution by emulating the experience from the comfort of your own home with your choice of keyboard and mouse. The entire set up will only cost you $10 and you have to make sure you have a PC capable enough of running PS4 remote play. We recommend at least an i5 with any GPU, but the higher the better.
How to Use Keyboard and Mouse on PS4 Without Adapter
You can see from the above video that the method still works since it doesn’t seem like Sony has taken any action to other change how this works.
All you need to do is buy the Rem4P software for $10 and you will be all set. The rest of the instructions are in the video, but the trickiest part of the whole process is setting up the mouse which in itself is the real challenge. Along with this, you have to keep in mind the unforgiving input lag between your keyboard, mouse and Remote Play.
This is why you need a VERY strong internet connection, even if you are doing remote play only a few meters away from the PlayStation and then you include multiplayer games running on remote play into the formula as well.
It could take some time for you to adjust to the input lag and become popular among your friends in higher ranked games of Rainbow 6 or Overwatch, but keep in mind that we have no way of knowing whether this method is accepted by Sony or not, so you the outcomes from this are numerous and as such you should proceed with caution.