The SKR Pro board uses JST-XH connectors.
In this post you can see an example of me rewiring the stepper motor connector with the JST ones.
If you are going to buy them you can either buy the connectors, or connectors with a cable. I took the last option since my stepper wires are not long enough, so it was easier that way to extend them.
Just resolder them, add some heat shrink tubing, and make a loop to strap them together. That way there´s little chance of breaking the connection.
One tip, if you´re buying them; buy some connectors for the end stops and lcd display too! I forgot one for the LCD so that´s on my to do list:)