A multi block device that uses power for every second it is active. While active the ship and player are invisible. Cloak cannot be activated unless the ship is at a full stop and not firing weapons. Moving (the ship) or firing weapons would turn off the cloak. Larger ships would cost more power.
This feature would allow players to evade in combat or trick someone into thinking that they passed into hyperspace. or delaying a hyperspace jump to enter jump coordinates. It could also give a pilot a short reprieve for shields to regenerate or load weapons if such is ever added.