Market Model Name/Feature Code
Model M6-1/ThinkPad UltraNav Keyboard
IBM ThinkPad scissor-stabilised rubber domes (LITE-ON variant)
Dual-setting flip-out feet
Black straight fixed Type A USB
Synaptics TouchStyk & TrackPad UltraNav
Has an integrated two-port USB hub, also called the IBM USB Keyboard with Integrated Pointing Device, known to be a part of the IBM 1U 17-Inch and 19-inch Flat-Panel Monitor Console Kits with feature code 8673
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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.