P/N 1393915 - Model M Keyboard Details & Specs

Provided by the ASK Keyboard Part Number Database

IBM Model 100 Functional Keypad Emulator

A designation from my own type naming scheme used to categorise this keyboard with or from others by their common features and market intent but may/may not be derived from official names.
Model M PS/2 50-Key Function Keypad
A [keyboard enthusiast] community given name for this keyboard. It can be a shortening of its name and properties, a more abstract term, a real-life reference, or metonymy.
Possible companies responsible for making this keyboard for the company marketing it.
The name of the known switching mechanism that lies under this keyboard's keys.
IBM membrane buckling springs
Earliest AppearanceEarliest Appearance
The year (and possibly the quarter) that this keyboard part number was introduced, first observed, first recorded or the first example found.
Original KeycapsOriginal Keycaps
The keyboard's original keycaps' material and text/symbol printing technique.
PBT with dye-sublimated legends
Casing ColourCasing Colour
The original colour of this keyboard's outer casing. For keyboards whose casing materials are known to yellow, this will refer to the original colour before such transformation occurs.
Pearl White
The possible branding and logo styles found on this keyboard part number. This could be multiple styles at once or possible styles found over time.
IBM grey oval badge
The style of this keyboard's flip-out or extendable feet. If applicable, this may also state how many levels of height adjustment are available and whether the feet could be rubberised.
Single-setting flip-out feet
The protocol(s) this keyboard can use to speak to the host computer (eg, scancode sets).
IBM Mode 2 (scancode set 2)
The keyboard-to-host connection. This is could be a description of a cable (its colour, whether its coiled, whether its detachable, and what connector is at its end) or the name of a wireless technology.
Grey coiled-style detachable 6-pin SDL to PS/2 mini-DIN cable
Key CountKey Count
The number of keys that this keyboard originally had.
Form FactorForm Factor
The standardised or universally acknowledged name for this keyboard's layout form factor.
50% matrix
Image of Layout/LanguageThe original regional/language layout this keyboard was configured as. Both the language and the standardised key layout may be listed, and in the case of both being known or defined, it will be styled as language then standard.
Functional Keypad
Additional NotesAdditional Notes
Extra notes about this keyboard that may be of interest or are important to know.
Features an arrow key cluster in the middle key column bank and a numeric keypad with capitalised enter key in the right key column bank
Data Last Updated 2021-04-08

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Variant of a Model M PS/2 50-Key Function Keypad
Variant of a Model M PS/2 50-Key Function Keypad

The 50-key Model Ms ("M50s") were matrix-style keypads intended for IBM Personal System/2 computers running bank teller applications. They first appeared in November 1987 for the IBM 8530-R02, a version of the IBM PS/2 Model 30 intended for such a purpose with IBM 4700 host support. They possessed the same physical layout as the 50-key Model F-based IBM 4704 Model 100 keypads and could come with transparent, functional or alphanumeric legends. These are one of two Model Ms whose internal assembly is based on an older Model F device and thus takes several production values from Model F designs; individual barrels, metal barrel plate, foam padding, and no plastic rivets holding the assembly together. The assembly's previous incarnation was the aforementioned 50-key Model F IBM Model 100s these M50s replaced.