Apple Apple Extended Keyboard II vs Apple Apple Keyboard II

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Apple Extended Keyboard II compared with Apple Keyboard II

	AppleApple Extended Keyboard II	AppleApple Keyboard II
Overview
Released
Released	1990	1990
Typing
Layout
Layout	Full size	Full size
Switches
Switches	Mechanical	Membrane
Backlight
Backlight	None	None
Keys labelled for
Keys labelled for	Mac	Mac
Touch ID
Touch ID	No	No
Switches
Switches	Mechanical switches; Deskthority documents Alps and Mitsumi switch variants across M0312 and M3501 units.	Deskthority documents Mitsumi rubber-over-membrane and SMK spring-over-membrane variants of model M0487.
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 M0487 specification lists 81 keys, including an 18-key numeric keypad and four cursor keys.
Special keys
Special keys	F1–F15 function keys with a supplied labelling overlay; lock indicators for Caps, Num and Scroll Lock.	Apple explains that Caps Lock and Control moved relative to the preceding M0116, while the space bar became longer.
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 1 m Apple Desktop Bus cable; Deskthority identifies two bidirectional ADB ports.
Works with
Works with	Any Apple personal computer with an Apple Desktop Bus interface, according to Apple's specification.	Any Apple computer with an ADB interface, according to Apple's specification; Apple says it shipped with the Macintosh Classic and LC.
Design
Weight
Weight	–	890 g
Width × depth × height
Width × depth × height	475 × 195 × 41 mm	405 × 151 × 32.5 mm
Materials
Materials	Beige plastic enclosure; the rear foot raises the stated typing angle from 6° to 14°.	Beige plastic housing with two rear tilt legs.
Colours
Colours	Beige.	Beige.
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's M0487LL/A packing list includes the keyboard, 1 m ADB cable, instruction sheet and warranty card.