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

Provided by the ASK Keyboard Directory

Admiral Shark's Keyboards (CC BY-NC-SA 4.0)
Admiral Shark's Keyboards (CC BY-NC-SA 4.0)
1993 Q1Model M5-2 Trackball KeyboardIBM membrane buckling springsMore info on this keyboard

aka IBM Enhanced Keyboard with 25mm Trackball

eg, P/Ns 59G7982, 92G7455

Variant of the IBM Enhanced Keyboard with 25mm trackball placed in the top-right corner.

Sources

ASK. Admiral Shark's Keyboards original content. License/note: CC BY-NC-SA 4.0.