Market Model Name/Feature Code
SK-8840
Type
Model M6-1/ThinkPad UltraNav Keyboard
Switches
IBM ThinkPad scissor-stabilised rubber domes (LITE-ON variant)
Feet
Dual-setting flip-out feet
Cable
Black straight fixed dual PS/2
Built-In Mouse
Synaptics TouchStyk & TrackPad UltraNav
Additional Notes
Known to be a part of the IBM 1U 17-Inch Flat-Panel Monitor Console Kit with option part number 73P3158
Data Last Updated
2020-11-12
More about this type of keyboard...
The Model M6-1 UltraNav keyboards were an extension of the standard Model M6-1 keyboard that included a trackpad and only used TrackPoint IV. Keyboards such as the IBM SK-8835, SK-8840, and SK-8845 were also the first desktop implementations of a ThinkPad keyboard. Integrated examples of these UltraNav keyboards were largely produced by either Alps or NMB, with desktop keyboards exclusively produced by LITE-ON.