Type: Tactile 
Top housing: PC
Bottom housing: Nylon
Stem: POM
Total Travel: 3.90±0.1mm
Pre-travel: 2.20±0.3mm
Actuation Force: 35±5gf
Preload: 38±5gf Min
Bottom-out Force: 55±5gf Max
Max keystrokes: 50 million keystrokes
Spring Type: L=15.4mm/Single Stage
Lubing: Factory lubed