colour: A: 82-key black shaft black white light version
B: 82-key green shaft white matte version C: 82 keys black shaft white matte version D: 82-key green axis black and white version E: 82-key blue axis white ice Blu-ray version F: 82-key black shaft black matte version G: 82 keys black axis white ice Blu-ray version H: 82 keys black axis black RGB luminous version I: 82-key green axis black RGB luminous version J: 82-key green shaft black matte version K: 82 keys, white red axis, blue light-bluetooth version L: 82 keys black red axis white light-Bluetooth version M: 82 keys pink red shaft white light N: 82 keys pink green axis white light