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P/N 92G7456

IBM 101-Key Keyboard with 25mm Trackball - AT Style

Type
Model M5-2 Trackball Keyboard
OEM
Lexmark
Switches
IBM membrane buckling springs
Earliest Appearance
1995
Original Keycaps
PBT with dye-sublimated legends
Casing Colour
White
Branding
IBM blue oval badge
Feet
Model M-style flip-out feet
Protocol
Set 2/AT & RS232 for mouse
Connection
Cable
Cable
Grey coiled detachable SDL to DIN (180) & DE-9
Key Count
101
Form Factor
Full-size
Layout/Language
US ANSI
Built-In Mouse
25mm Trackball
Additional Notes
FRU per DPRS number is 13H6724
Data Last Updated
2021-02-09

More about this type of keyboard...

Variant of a Model M5-2 Trackball Keyboard
Variant of a Model M5-2 Trackball Keyboard
Variant of a Model M5-2 Trackball Keyboard
Variant of a Model M5-2 Trackball Keyboard
Variant of a Model M5-2 Trackball Keyboard
Variant of a Model M5-2 Trackball Keyboard

The 25mm IBM Trackball Keyboard is the second of two variants of the IBM's trackball-integrated Enhanced Keyboard variants. The Model M5-2 contrasts the Model M5-1 in being far more common and housing the trackball module in its own assembly on the top-right corner of the keyboard. The module also has the four mouse keys repeated facing the behind the keyboard to accommodate users using their thumbs for the trackball. The Model M5-2 remains in production via Unicomp as the Classic Trackball keyboard (also previously called "On-The-Ball").