For more information I suggest the sources of this answer: There are other reasons not mentioned in this answer for using PS/2, but these don't make any difference on gaming. While connecting your keyboard using PS/2 won't harm your game experiences either, it is probably the easiest to just stick to the protocol everyone uses: USB. So in the end, no, using PS/2 has no benefits for gaming, except for the N-key-rollover that could be useful in some special cases. In and out like we are used now with USBs, doing this can lead to Since PS/2 connectors were not designed to be as frequently plugged Modern system this won't be a problem, but it is still something to On older system this meant that removing a PS/2 connectedĭevice while the system was active could cause it to crash. You ever did something like that whileīecause PS/2 interrupts the actual OS, it directly connects to the Will never run into problems, the 6-key-rollover that USB supports isĪlmost always sufficient for gaming purposes. This difference in protocols can cause a slight difference in speed,īut it will be so little that it can be neglected for gaming andĪs you mentioned in your question, the difference in protocols alsoĪllows for N-key-rollover. USB on the other hand gets polled, which means the computer keeps asking multiple times a second the input device for its current state. a key is pressed/released), the protocol interrupts the current task of the CPU and the system immediately starts dealing with the new state. When the state of a PS/2 device changes (e.g. PS/2 uses a different protocol in dealing with actual user input. Apart from the differences I will mention in this answer, a PS/2 and USB connected keyboard will behave almost entirely the same while gaming. PS/2 is an original way of connecting keyboards (and mice) to computers, before USB was created.
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