P/N 84G2529
Type
Model M4-1 Space Saver TrackPoint II Keyboard
OEM
Lexmark
Switches
IBM M3/M4/ThinkPad buckling sleeves (Lexmark variant)
Earliest Appearance
1995 Q2
Casing Colour
Black
Branding
IBM black oval badge
Feet
Rubberised single-setting flip-out feet
Protocol
Set 2/AT
Connection
Cable
Cable
Grey coiled detachable SDL to dual PS/2
Key Count
83
Layout/Language
US ANSI
Built-In Mouse
TrackPoint II
Additional Notes
Can be paired with numeric keypad P/N 84G2530
Data Last Updated
2020-11-12
More about this type of keyboard...
The IBM Space Saver Keyboard with TrackPoint II was a variant of the original Model M4 that featured an integrated TrackPoint II pointing stick. The Model M4-1 is notable for being the first IBM desktop keyboard to feature TrackPoint technology and the only Model M to retain a strain gauge-based pointing stick after Unicomp took over production.