The End of the Switch.
Mechanical keyboards feel great. But physics dictates a hard limit on how fast you can push pieces of plastic down and wait for them to come back up.
The Actuation Bottleneck
A standard Cherry MX Red switch requires 45g of force to actuate and travels 2.0mm before the keystroke registers. This mechanical reality introduces a microscopic delay. At 100 WPM, those delays compound, placing a hard ceiling on throughput.
KeyboardHand's optical array requires 0g of force and 0mm of travel. As soon as your finger initiates the downward arc, the 120Hz sensor detects the intent and registers the keystroke.
The Price of Tactility: RSI
The satisfying "clack" of a mechanical keyboard is the sound of your finger slamming into a solid piece of plastic (bottoming out). The shockwave from that impact travels directly into your tendons. Over years of use, this micro-trauma results in Repetitive Strain Injury (RSI). By removing the switch entirely, KeyboardHand offers a permanent, zero-impact solution.