Effects of Switch Type and Keycap Height in Mechanical Keyboards on Usability

This study examined how switch type (Clicky, Tactile, Linear) and keycap height (Low, Middle, High) affect mechanical-keyboard usability across performance (typing speed, accuracy), satisfaction (overall, ease of use, tactile feed- back, pleasure, preference), discomfort (overall, finger, wrist), and noise. Nine switch–keycap combinations were tested. Switch type significantly influenced typing speed, tactile feedback, and noise; Clicky switches yielded faster typing and stronger tactile feedback but the highest noise. Keycap height significantly affected satisfaction and di comfort; Low keycaps increased satisfaction, whereas High keycaps increased discomfort. These findings inform me- chanical-keyboard design to enhance usability.