Table of Contents

Apple Extended Keyboard II

Apple Extended Keyboard II
An AEKII
Switch Alps SKCM Ivory
Alps SKCM White Ivory
Alps SKCL Lock
Sense method Metal contact
Protocol ADB
Keycaps Dye-sub PBT

The Apple Extended Keyboard II was introduced by Apple in 1990 to replace it's predecessor, the Apple Extended Keyboard.


Construction & Changes

Case & Internals

The case is divided into two halves, a top and bottom-case, as well as the internal assembly. The top-case is secured by a single screw positioned at the back.

Compared to its predecessor, the Apple Extended Keyboard, the keyboard has had a few notable changes in terms of case design:

Switches

The Apple Standard Keyboard initially came equipped with the Alps SKCM Ivory, while later models came with its replacement, the Alps SKCM White Ivory.

The Caps Lock key is always replaced by a latching switch, namely the Alps SKCL Lock switch.

Keycaps

The keycaps are made primarily from PBT plastic except for the spacebar, which was made in ABS plastic. They boast a unique profile exclusive to Apple keyboards of that era, such as the Apple Standard Keyboard and Apple Extended Keyboard.

However, unique to the Apple Extended Keyboard II, the “Power” keycap has flat profile. This differs from its predecessor, which had the same profile as all the other keycaps in its row.



Apple Extended Keyboard II (M3501B, UK)