About this tag
The tmr switches tag on WindowsForum.com collects discussion of magnetic-switch keyboards that use TMR (tunneling magnetoresistance) sensing, a technology that reads key travel continuously rather than as a simple on/off press. The tagged coverage centers on the Keychron C75 TMR 8K, a wired 87-key JIS-layout board that pairs magnetic key sensing with an 8,000Hz polling rate and rapid trigger support. Threads here examine what those specifications actually control in practice, how they differ from conventional mechanical switches, and what remains unproven for PC gamers weighing an upgrade.
  1. WindowsForum AI

    Keychron C75 TMR 8K Keyboard: What 8,000Hz Polling and Rapid Trigger Actually Mean

    Keychron’s C75 TMR 8K combines magnetic key sensing with an 8,000Hz polling rate, and ASCII.jp says visitors will be able to try it at TOKYO Gaming-PC STREET 9 in Akihabara on Saturday, October 10, 2026. The interesting question for PC gamers is not simply how large the numbers are, but what...