So, keys on a board normally have a specific travel distance (depending on switch type) that they must be pressed to flip between ‘pressed’ and ‘not pressed’.
This tech uses fancy keyboards with fancy switches and fancy software (on the keyboard) to change the required travel distance of one key to register, dependant on the travel distance of another key, and then also alter the output state of the other key.
So, if normally you needed 80% travel to register a key… lets say it takes a player 100 ms to push D to 100% then another 100 ms to fully release D and fully push A to 100%, simultaneously.
Timeline:
0 to 80ms of nothing.
At 80ms, D is registered, strafing right
80 to 120ms, or 40ms of strafing right.
At 120ms, D is unregistered.
120ms to 180ms of no movement.
At 180ms, A is registered, strafing left.
180ms onward of left strafing.
An initial delay of 80ms, 60ms of nothing, then leftward movement after 180ms.
Thrown on fancy bullshit, and the software say, changes A to need only a 20% travel to register while D is past 80%, and this also cancels D once A gets past 20%.
Also, this software says that if no strafing inputs are being received, and then one is, that input only needs 20% to register.
New timeline:
0 to 20 ms of nothing.
At 20ms, D is registered, right strafing.
20 to 120 ms of right strafing.
At 120 ms, D is unregistered and A is registered, left strafing.
120ms onward of left strafing.
Now you have an initial 20ms delay, absolutely no non strafing time, and you get to left strafing after only 120ms.
So, you’ve now initially started moving 4x faster, totally eliminated your non strafing time, and gotten to your end desired strafe direction in 33% (60ms) faster than before.
This is a huge crutch in a fast paced twitchy competitive game.
I have seen videos of these keyboard being used with floating/flying characters in OW2 and it basically allows you to jitter your character 2 meters to the right and left almost instantly, such that it looks like you are fighting against someone with movement hacks. Nearly impossible to hit someone doing this… without an aimbot, lol.