I can already type with my mind. I had my brain internally wired to a pair of biomechanical "limbs" with graspers on the end that just happen to interface with

I can already type with my mind. I had my brain internally wired to a pair of biomechanical "limbs" with graspers on the end that just happen to interface with a standard keyboard really well. I trained a neural net to run the setup, and since then it's served my needs very well. Granted, some of the inner workings are mechanical rather than electrical, but I can already type faster than I can think.