[Asher]

Since two types of lockout chip were used in Europe, European NES game boxes often had an "A" or "B" letter on the front, indicating whether the game is compatible with UK/Italian/Australian consoles (A), or the rest of Europe (B).

Снизу порт , наеврно, думали для диск систем, но его дальше Японии так и не выпустили