Keygeek Mirror Lake R2 Linear Switches

The Mirror Lake R2 Linear is a mechanical keyboard switch designed for enthusiasts seeking a smooth and consistent typing experience. With its linear feel and carefully engineered components, this switch offers reliable performance for both gaming and typing applications.

Key Features

• Linear switch design for smooth keypresses
• 45g actuation force for light and responsive typing
• 58g bottom out force for a satisfying end to each keystroke
• 1.8mm pretravel and 3.7mm total travel distance
• U4 stem for enhanced stability and feel
• PCB mount compatibility for secure installation
• 5-pin configuration for versatile keyboard builds
• 21mm single-stage spring for consistent force curve

Materials and Construction

• Stem: U4, colored blue for easy identification
• Top housing: Made from durable polycarbonate, also in blue
• Bottom housing: Constructed from PBT plastic, providing a sturdy base and colored blue
• Spring: 21mm single-stage design for reliable actuation

Technical Specifications

• Stem type: MX compatible
• Feel: Linear, with no tactile bump or audible click
• Mount type: PCB mount
• Switch pin count: 5
• Actuation force: 45 centinewtons (cN)
• Bottom out force: 58 centinewtons (cN)
• Force variance: ±5 cN
• Operating position (pretravel): 1.8 mm
• Full travel distance: 3.7 mm
• Spring length: 21 mm

Performance and Feel

This switch delivers a linear and uninterrupted keystroke, making it ideal for users who prefer a smooth and quiet typing experience. The light actuation force reduces finger fatigue during extended use, while the 58g bottom out provides a solid and controlled finish to each press. Its 1.8mm pretravel allows for quicker key registration, which is beneficial for both fast typists and gamers.

Compatibility

• MX-style stem fits most keycap sets
• 5-pin PCB mount suitable for a wide range of custom and prebuilt mechanical keyboards

Summary

The Mirror Lake R2 Linear switch combines a lightweight actuation, robust construction, and a smooth linear feel. Its blue polycarbonate and PBT housings, along with a U4 stem and 21mm spring, make it a reliable choice for those seeking a high-quality linear switch for their next keyboard build.