P/N 84H8525 - Model M4-1 Keypad Details & Specs

Provided by the ASK Keyboard Part Number Database

IBM Quiet Touch Numeric Keypad

FRU Part NumberFRU Part Number
Field Replaceable Unit
The number used to relate and indicate compatible but otherwise potentially different keyboards that could replace this one.
84H8567
Market Model Name/Feature CodeMarket Model Name/Feature Code
The consumer-friendly model number describing this keyboard as a part of a range of products, usually irrespective of target region, language or SKU.
E04024US
TypeType
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 M4-1 Space Saver Numeric Keypad
OEMOEM
Possible companies responsible for making this keyboard for the company marketing it.
Key Tronic, Unicomp
KeyswitchesKeyswitches
The name of the known switching mechanism that lies under this keyboard's keys.
IBM buckling rubber sleeves (M3/M4 rod-actuated type)
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.
1996
Original KeycapsOriginal Keycaps
The keyboard's original keycaps' material and text/symbol printing technique.
PBT with dye-sublimated legends
Cover ColourCover Colour
The original colour of this keyboard's cover set (outer casing). For keyboards whose cover set materials are known to yellow, this will refer to the original colour before such transformation occurs.
Pearl White
BrandingBranding
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.
None
FeetFeet
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.
Rubberised single-setting flip-out feet
ConnectionConnection
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 straightened-style detachable modular-10P10C ("RJ-50") to modular-10P10C ("RJ-50") cable
Key CountKey Count
The number of keys that this keyboard originally had.
18
Form FactorForm Factor
The standardised or universally acknowledged name for this keyboard's layout form factor.
Keypad
Additional NotesAdditional Notes
Extra notes about this keyboard that may be of interest or are important to know.
Model number applicable to Key Tronic OEM examples only, some late Unicomp examples were designated simply "M4"
Source(s)Source(s)
Documents ("Doc"), websites and/or webpages ("Web") that were used as a source of information for this keyboard part number. Examples of this keyboard part number I own ("ASK") will also be included as sources.
Web: https://sharktastica.co.uk/archive/view?id=bd3278961bab7ffc
Web: https://imgur.com/a/M8KEe9K
Web: https://sharktastica.co.uk/archive/view?id=300b93693cc821e8
Data Last Updated 2023-07-18

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