Cherry MX Ultra Low Profile Switches: An Overlooked Innovation

The Corsair K100 Air Wireless keyboard, released in 2022, featured Cherry MX Ultra Low Profile switches that delivered a distinctive typing feel. Despite being praised as one of the best keyboards tested, the technology never gained mainstream adoption. The article argues these switches remain underappreciated and deserve a resurgence in desktop keyboards.
Cherry's MX ULP switches use a distinctive metal-wing actuation system rather than the conventional plastic stem found in standard mechanical switches. This design achieves a total switch height of just 3.5mm and key travel of 1.8mm, allowing the Corsair K100 Air Wireless to measure only 17mm at its thickest point. The switches were offered exclusively in tactile configurations, either with a bump or click.
The tactile response is notably short and sharp compared to full-height switches, while the 65cN actuation force matches heavier switches like the MX Clear. However, the abbreviated travel prevents the finger fatigue typically associated with heavier switches. Despite the K100 Air Wireless being praised as one of the best keyboards tested, the ULP technology never achieved widespread adoption in desktop keyboards.
This technology could influence future keyboard design if manufacturers revisit ultra-low-profile form factors, potentially appealing to users seeking mechanical feel in slimmer packages. Laptop users and those with limited desk space may benefit most from such innovations. However, the lack of industry momentum suggests market resistance, possibly due to limited switch variety or consumer preference for traditional travel distances. The article's retrospective perspective may encourage renewed interest, though adoption ultimately depends on manufacturer willingness to invest in the specialized tooling required.