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P/N 1396572

IBM Numeric Keypad for IBM PS/2 L40SX

FRU Part Number
1397189
Market Model Name/Feature Code
0248
Type
Model M3 Numeric Keypad
OEM
IBM, Lexmark
Earliest Appearance
1991 Q2
Original Keycaps
PBT with dye-sublimated legends
Casing Colour
Pearl White
Protocol
Set 2/AT
Connection
Cable
Key Count
17
Form Factor
Keypad
Layout/Language
German
Additional Notes
Sports a pass-through PS/2 connector for PC-compatible mice
Data Last Updated
2021-10-06

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Variant of a Model M3 Numeric Keypad

The Model M3 numeric keypad was an optional peripheral for the IBM Personal System/2 L40SX laptop. The keypad uses the same buckling sleeves switches as the host laptop, making it notable as being the first discrete device featuring IBM's buckling sleeves switches. The keypad sports a passthrough PS/2 mouse socket, but it connects to the host laptop via a proprietary connection.

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