I can't seem to find much info on the MC1184ll/b keyboard vs. A1314 keyboard. I've also seen a MC1184ll/A online. It seems that the MC1184ll/b is a newer model than A1314 but I'm unsure. Also I see people listing them on Ebay as "Mac MC1184ll/B (A1314) Keyboard" so it makes me think they are the same.