Midnight Pro Silent Linear Switch
Kailh
The Kailh Midnight Pro Silent Switch upgraded its structure and features from the original Midnight silent switch V1. By doing so, it can now provide a better silent effect and a more harmonious, modern appearance.
Appearance
Structure diagram
Travel diagram
Basic specs
| Mount | MX |
|---|---|
| Footprint | MX |
| Keycap stem | MX stem |
| Key pitch(mm) | 19.05 (MX) |
| Pins | 5 |
| Silent | ● |
| RGB | ● |
| Factory lubed | ● |
| Stem material | POM |
| Top housing material | PC |
| Bottom housing material | Nylon PA66 |
| Protecting cover material | − |
| Slider material | − |
| Light guide | − |
| Spring material and plating | Spring steel |
| Contact material | Composite gold |
Detailed specs
| Model number | CPG151101S153 |
|---|---|
| Series | Midnight Pro Silent Switch |
| Type | Linear |
| Actuation force(gf) | 45 ±10 |
| Bottom-out force(gf) | − |
| Tactile force(gf) | − |
| Return force(gf) | >= 15 |
| Pre-travel(mm) | 1.9 ±0.4 |
| Total travel(mm) | 4.0 ±0.4 |
| Tactile position(mm) | − |
| Operating life(Cycle) | 70 × 10⁶ or more |
| Spring stages | − |
| Spring length(mm) | − |
| Spring weight(gf) | − |
Data updated: 2026-04-26