MMD Princess mechanical keyboard switch linear axis body with extended 20.4mm spring for custom keyboard builds available in multiple trigger pressure weights from 28gf to 60gf including factory and artificial lubricated variants
MMD Princess linear mechanical keyboard switch with extended 20.4mm spring for custom keyboard builds

The MMD Princess mechanical keyboard switch represents a specialised component for keyboard enthusiasts seeking to build or modify their typing instruments with precise control over actuation characteristics. As a linear axis type, this switch eliminates the tactile bump or audible click found in other mechanical switches, providing a smooth, consistent keystroke from initial press to bottom-out. Available in multiple trigger pressure variants ranging from light 28gf options to heavier 60gf alternatives, this switch caters to different typing styles and preferences. Both factory-lubricated and artificially lubricated versions offer builders choices in smoothness profiles, while the extended 20.4mm spring contributes to predictable key return behaviour essential for rapid typing sequences and gaming applications.
Features and Construction

The MMD Princess switch provides measurable specifications that allow keyboard builders to make informed decisions about their typing experience. With clearly defined trigger and bottom pressures across multiple weight options, along with precise travel measurements, this component offers transparency about its performance characteristics. The construction focuses on delivering consistent linear motion without the complications of tactile mechanisms.
Material and Build
The switch body comprises components designed for reliable installation in mechanical keyboard PCBs, with contacts and housings engineered for electrical connectivity and mechanical stability. The included 20.4mm extended spring features steel wire with a 0.23mm diameter, contributing to the switch's force curve and return characteristics. Factory-applied lubrication provides consistent smoothness across the switch's moving parts, while artificially lubricated variants offer alternative smoothness profiles for enthusiasts who prefer specific lubricant types or application methods.
Size and Practical Fit
With standard MX-style form factor dimensions, the MMD Princess switch fits most mechanical keyboard PCBs designed for cherry MX-compatible switches. The 3.6mm total travel distance represents a complete keypress from resting position to fully depressed state, while the 2.0mm trigger stroke indicates the distance required for switch actuation and key registration. These measurements allow users to understand exactly how far they need to press each key before it registers, which can influence typing speed and fatigue during extended use.
Uses and Placement

This linear switch suits various applications where consistent, smooth keystrokes without tactile feedback are preferred. The absence of click or bump makes it particularly suitable for environments where audible keyboard noise might be distracting, while the multiple pressure options allow matching the switch characteristics to specific typing tasks or user preferences.
Event or Professional Use
For gaming applications, linear switches like the MMD Princess allow rapid, repeated keypresses without the resistance changes associated with tactile switches, potentially improving response times in fast-paced gaming scenarios. The consistency of linear actuation helps maintain rhythm during extended gaming sessions. In office environments, the quieter operation compared to clicky switches makes this option suitable for shared workspaces, while the smooth keystroke can reduce finger fatigue during prolonged typing tasks like data entry or document creation.
Everyday Home Use
For personal mechanical keyboards, the MMD Princess switch enables customisation of typing feel based on individual preference, with lighter 28gf options suitable for those who prefer minimal typing resistance and heavier 60gf variants appealing to users who want more substantial keypress feedback. The linear motion provides a different typing experience compared to membrane keyboards, with more consistent actuation force throughout the keystroke. Home office users can select trigger pressure variants that match their typing style, potentially improving comfort during extended computer use.
Benefits and Buying Value

The MMD Princess switch offers keyboard enthusiasts a component that provides specific, measurable characteristics for building personalised typing instruments. With multiple pressure options and lubrication variants, this product allows users to fine-tune their keyboard's performance to match their exact preferences rather than accepting standardised switch characteristics.
Reuse and Low Maintenance
As a mechanical component designed for installation in custom keyboards, the MMD Princess switch can be transferred between keyboard builds if desired, allowing users to experiment with different keyboard layouts or cases while retaining their preferred switch type. The factory lubrication provides consistent performance without requiring additional maintenance from the user, while the durable construction supports repeated use over time as part of a mechanical keyboard assembly.
Why Choose This Product
The MMD Princess switch distinguishes itself through its range of clearly specified pressure options and the inclusion of both factory and artificially lubricated variants, providing choices not always available with standard mechanical keyboard switches. The extended 20.4mm spring influences the switch's force curve and return behaviour in a measurable way, offering keyboard builders additional data points for selecting components. With trigger pressures spanning from 28gf to 60gf, users can match the switch resistance to their typing style more precisely than with many off-the-shelf mechanical keyboards that typically offer only one or two switch options.



