It was considered a professional alternative to its lesser Apple Keyboard and Apple Keyboard II contemporaries – and to the truly mediocre AppleDesign Keyboard that succeeded them. Others of us might debate that, but the Extended Keyboard II was certainly the biggest, heaviest keyboard Apple ever made, covering a vast expanse of desktop and weighing in at a hulking 5 pounds. Many Mac users from way back in the legacy era consider the old ADB Apple Extended Keyboard II to be the best keyboard Apple ever made.