Deep Sea Silent Pro Box Switch lslet
Kailh
The Kailh Deep Sea Silent Pro Box Switch is the descendant of the original Kailh Deep Sea Silent Box Switch. This new switch features a blue transparent PC cover, a dark blue nylon base, and a transparent prolong stem to give the feeling of the deep sea. It looks like art on a keyboard and provides a more stable and quiet feel.
Appearance
Structure diagram
Travel diagram
Basic specs
| Mount | Kailh BOX |
|---|---|
| Footprint | MX |
| Keycap stem | MX stem |
| Key pitch(mm) | 19.05 (MX) |
| Pins | 3 |
| Silent | ● |
| RGB | ● |
| Factory lubed | ● |
| Stem material | Clear plastic |
| Top housing material | PC |
| Bottom housing material | Nylon |
| Protecting cover material | PC |
| Slider material | POM |
| Light guide | PC |
| Spring material and plating | Spring steel |
| Contact material | Composite gold |
Detailed specs
| Model number | CPG1511F01S129 |
|---|---|
| Series | Deep Sea Silent Pro Box Switch |
| Type | Linear |
| Actuation force(gf) | 45 ±10 |
| Bottom-out force(gf) | − |
| Tactile force(gf) | − |
| Return force(gf) | >= 15 |
| Pre-travel(mm) | 1.8 ±0.4 |
| Total travel(mm) | 3.6 ±0.4 |
| Tactile position(mm) | − |
| Operating life(Cycle) | 100 × 10⁶ or more |
| Spring stages | − |
| Spring length(mm) | − |
| Spring weight(gf) | − |
Data updated: 2026-04-26