Apple Apple Extended Keyboard II vs Apple Apple Keyboard (M0116)

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Apple Extended Keyboard II compared with Apple Keyboard (M0116)

	AppleApple Extended Keyboard II	AppleApple Keyboard (M0116)
Overview
Released
Released	1990	1987
Typing
Layout
Layout	Full size	Full size
Switches
Switches	Mechanical	Mechanical
Backlight
Backlight	None	None
Keys labelled for
Keys labelled for	Mac	Mac
Touch ID
Touch ID	No	–
Switches
Switches	Mechanical switches; Deskthority documents Alps and Mitsumi switch variants across M0312 and M3501 units.	Mechanical Alps switches; Deskthority's exact-model inspection documents tactile SKCM Orange and Salmon production variants and a mechanically locking SKCL Caps Lock switch. Switch variants and language layouts are not separate hardware generations.
Key travel
Key travel	–	Exact-model key travel and actuation force are not published in the recovered maker documents and remain omitted.
Keycaps
Keycaps	–	Deskthority documents dye-sublimated PBT keycaps with an ABS space bar; these material identifications come from specialist inspection, not Apple's product sheet. The legends use Apple's bottom-left italic layout.
Layouts
Layouts	Apple's M0312 specification lists 105 keys, including an 18-key numeric pad, 15 function keys, six editing keys and inverted-T arrows.	Apple's March 1987 product sheet lists 81 keys, including the numeric pad and four cursor-control keys. The pictured US M0116 has a large Return key, Control to the left of A and Caps Lock at the lower-left corner. The related international M0118 layout moves these keys; it is a language-layout option, not a different generation.
Special keys
Special keys	F1–F15 function keys with a supplied labelling overlay; lock indicators for Caps, Num and Scroll Lock.	Escape, Control, Command, Option, locking Caps Lock and a separate power key. The four arrow keys sit in one row below the right Shift key; there is no F-key row. Apple's hardware reference explicitly distinguishes this keyboard from the larger Apple Extended Keyboard.
Connections and battery
Connects by
Connects by	Cable	Cable
Power
Power	Cable	Cable
Receiver
Receiver	Detachable 1 m Apple Desktop Bus cable supplied; the keyboard has ADB ports for connection to compatible Apple computers.	Detachable Apple Desktop Bus cable and two bidirectional ADB ports; either port connects upstream, with the other able to connect a mouse or another compatible input device. ADB is different from both USB and the earlier Macintosh Plus keyboard's synchronous serial port.
Battery life detail
Battery life detail	–	Powered over the ADB connection; no battery is required. A keyboard-only current requirement was not recovered and remains unpublished.
Works with
Works with	Any Apple personal computer with an Apple Desktop Bus interface, according to Apple's specification.	Apple's product sheet specifies any Apple personal computer with an ADB interface and names the Macintosh SE and Macintosh II. Modern computers require a suitable separate ADB converter; none is included here.
Software
Software	–	Apple's product sheet advertises a separately packaged remapping desk accessory for assigning menu commands or text strings to a key or combination; it is not listed among the keyboard's supplied items.
Design
Weight
Weight	–	1000 g
Width × depth × height
Width × depth × height	475 × 195 × 41 mm	418 × 142 × 44.5 mm
Size
Size	–	Apple's exact M0116 product sheet gives width 418 mm, depth 142 mm, height 44.5 mm and weight 1 kg. Third-party measurements of surviving examples are not substituted for the maker's figures.
Materials
Materials	Beige plastic enclosure; the rear foot raises the stated typing angle from 6° to 14°.	Separate moulded enclosure, mechanical switch board and individual keycaps, visible in the original product photograph and specialist exact-model inspection.
Colours
Colours	Beige.	The recovered original maker product photograph is monochrome; an exact factory colour description was not recovered.
In the box
In the box	Keyboard, 1 m ADB cable, function-key overlay, owner's guide and warranty statement in Apple's M0312 packing list.	Apple Keyboard and cable, referral card and limited warranty statement in Apple's M0116 order list; the computer and mouse are separate. Apple's March 1987 price list introduces the keyboard without a future availability note, while April 1987 University of Minnesota ordering information names the M0116 in available Macintosh SE configurations. An exact first-sale month or day is not established, so year precision is retained.