Full Name
IBM Space Saver Numeric Keypad
Type
Model M4-1 Space Saver Numeric Keypad
Switches
IBM M3/M4/ThinkPad buckling sleeves (Lexmark variant)
Earliest Appearance
1995 Q2
Feet
Rubberised single-setting flip-out feet
Cable
Detachable modular 10P10C ("RJ-50") to modular 10P10C ("RJ-50")
Layout/Language
US English
Production Date
1995, 8 March