P/N 1397451
FRU Part Number
1397470
Type
Model M4 Space Saver Keyboard
OEM
Lexmark
Switches
IBM M3/M4/ThinkPad buckling sleeves (Lexmark variant)
Earliest Appearance
1996 Q1
Casing Colour
Beige/Off White
Branding
IBM blue oval badge
Feet
Rubberised single-setting flip-out feet
Protocol
Set 2/AT
Connection
Cable
Cable
Grey coiled detachable SDL to PS/2
Key Count
83
Layout/Language
US ANSI
Data Last Updated
2021-04-08
More about this type of keyboard...
The IBM Space Saver Keyboard (not to be confused with the IBM Space Saving Keyboard or SSK) was the discrete desktop and server environment adaptation of the IBM Personal System/2 L40SX laptop's Model M3-based buckling sleeves keyboard assembly. The Model M4 is a straight adaptation of that assembly, featuring the same layout but available with beige or black case colour. M4s were originally produced by Lexmark and Key Tronic, however, Unicomp continued production until the late 2000s. Unicomp's internal codename for the M4 family was "Surf".