Super Speed Copper Switch
Kailh
Improving from the original KS speed switches, we upgraded the Kailh Super Speed Switches' structure and features. The Kailh Super Speed Switches has a better percussion feel, trigger sound, and a lighter actuation force. They still however, have the original KS speed switches’ short key travel distance and quick actuation. If you want to try a speed switch, give the Super Speed switch a go.
Appearance
Structure diagram
Travel diagram
Basic specs
| Mount | MX |
|---|---|
| Footprint | MX |
| Keycap stem | MX stem |
| Key pitch(mm) | 19.05 (MX) |
| Pins | 3 |
| 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 | CPG151101D291 |
|---|---|
| Series | Super Speed Switch |
| Type | Tactile |
| Actuation force(gf) | 38 ±10 |
| Bottom-out force(gf) | − |
| Tactile force(gf) | 50 ±10 |
| Return force(gf) | >= 12 |
| Pre-travel(mm) | 1.1 +0.3 / -0.2 |
| Total travel(mm) | 3.5 ±0.4 |
| Tactile position(mm) | − |
| Operating life(Cycle) | 70 × 10⁶ or more |
| Spring stages | − |
| Spring length(mm) | 18 |
| Spring weight(gf) | − |
Data updated: 2026-04-26