HP 311059-221 - Enhanced PS/2 keyboard (Carbon Black), 6-pin mini-DIN connector - Czechoslovakia Retail
HP 311059-AB1 - Enhanced PS/2 keyboard (Carbon Black), 6-pin mini-DIN connector - Traditional Chinese Retail
HP 311059-AA1 - Enhanced PS/2 keyboard (Carbon Black), 6-pin mini-DIN connector - Simplified Chinese Retail