P/N 1390655
Type
Model M Enhanced Industrial Keyboard
OEM
IBM
Switches
IBM membrane buckling springs
Earliest Appearance
1987
Original Keycaps
PBT with dye-sublimated legends
Casing Colour
Industrial Grey
Branding
IBM silver square badge
Feet
Single-setting flip-out feet
Protocol
Set 2/AT
Connection
Cable
Cable
Grey coiled detachable SDL to PS/2
Key Count
101
Form Factor
Full-size
Layout/Language
US ANSI
Additional Notes
Manufactured for and branded as Allen-Bradley
Data Last Updated
2021-04-08
More about this type of keyboard...
The Model M industrial keyboards were the first PC-compatible Model Ms available, originally shipping with the AT-class IBM 7531 Industrial PC. Compared to the IBM Enhanced Keyboard, industrial Model Ms are essentially the same underneath but feature a grey-coloured case designed to hide the dirt and damage expected to be inflicted upon the device within an industrial environment.