Kailh Speed Copper
vsKailh Super Speed Copper
Hear them
Side by side
| Kailh Speed Copper | Kailh Super Speed Copper | |
| Type | Tactile | Tactile |
| Sound | Recorded | Recorded |
| Loudness | -38.9 dB | -32.5 dB |
| Pitch | 1,695 Hz | 2,750 Hz |
| Spring weight | 44.6 g | 37.5 g |
| Actuation force | 30 g | 21.5 g |
| Bottom-out force | 52.7 g | 46.2 g |
| Total travel | 3.9 mm | 3.9 mm |
| Tactile bump | 35 g | 52 g |
Force curves compared
Both curves modeled from each switch's measured actuation, bottom-out and tactile-bump values.
Which should you pick?
The Kailh Speed Copper and Kailh Super Speed Copper are both tactile switches, but they feel and sound different enough to be worth comparing directly.
Kailh Speed Copper runs the heavier spring at 44.6g versus 37.5g — about 7.100000000000001g more — so it feels more deliberate under the finger, while Kailh Super Speed Copper is quicker and lighter to press.
On sound, Kailh Super Speed Copper is the louder of the two at -32.5dB versus -38.9dB (6.399999999999999dB quieter), pitched higher at roughly 2,750Hz. It reads as recorded, while Kailh Speed Copper comes across more recorded.
Both are tactile, but Kailh Super Speed Copper has the stronger bump at about 52g versus 35g.
Pick Kailh Speed Copper if you want a heavier, more controlled press and a quieter typing sound. Pick Kailh Super Speed Copper if you'd rather have a lighter, faster press and a louder, more present sound. Use the players above to hear which one you actually prefer.
Full pages
Hear the difference for real
Load either switch into the live simulator and A/B them with your plate, case and keycaps.
Open the simulator →