GoKawiilArs Technica explains how Hall-effect and TMR keyboard switches differ from mechanical ones
A new explainer breaks down how contactless keyboard switches—including optical, Hall-effect, and TMR (tunneling magnetoresistance) designs—work compared to traditional mechanical switches, which rely on two metal leaves physically touching to close a circuit. These newer switch types have grown more common over roughly six years and typically cost more than standard mechanical keyboards, which themselves cost more than basic membrane boards.
GoKawiil's interpretation of the reporting above, not reported fact.
Because contactless switches avoid physical metal-on-metal contact, they can offer longevity and customization advantages, such as adjustable actuation points, which appeal especially to gamers seeking faster or more precise inputs. However, the explainer notes that in everyday typing the practical differences from standard mechanical switches can be subtle, suggesting buyers should weigh the premium price against real-world benefit rather than marketing claims alone.
- Contactless keyboard switches like optical, Hall-effect, and TMR have grown common over the past six years.
- Traditional mechanical switches use two metal leaves that touch to complete a circuit, while contactless designs avoid direct contact.
- Contactless switches often cost more and target gamers, though daily-use differences can be minor.
Wooting 60HE Hall-effect Keyboard — If you're curious about the contactless switch tech covered in this guide, the Wooting 60HE is one of the most prominent Hall-effect keyboards actually on the market, letting you adjust actuation points and experience analog input firsthand. It's a great way to see what all the magnetic-switch hype is about rather than just reading about it.
See Wooting 60HE Hall-effect Keyboard on Amazon → Affiliate link — we may earn a commission on purchases, at no extra cost to you. Product picked by AI based on this article; it is not a tested recommendation.Source: arstechnica.com, 2026-10-05
Published there as: “Explaining Hall-effect, TMR, and other new types of "mechanical" switches”
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