Akko CS Lavender Purple vs Kailh Speed Copper
The Akko CS Lavender Purple and the Kailh Speed Copper register at different depths, 0.8 mm apart, which is the kind of difference you feel in a game long before you notice it in a spec table. Our full switch library cross-links them because this matchup keeps coming up. Start with the A/B bursts below, then take the spec table and the picks in order.
Hear them back to back
simulated from real specssound loads on your first tapShortcuts: press A or B anywhere outside a text box to fire that burst. Use the volume trims to loudness-match the pair before judging which sounds better.
Spec by spec
| Spec | Akko CS Lavender Purple | Kailh Speed Copper |
|---|---|---|
| Type | Tactile | Tactile |
| Brand rates force at | actuation | actuation |
| Actuation force | 36 g | 40 g |
| Bottom-out force | not published | not published |
| Pre-travel | 1.9 mm | 1.1 mm |
| Total travel | 4 mm | 3.5 mm |
| Silent (dampened) | No | No |
| Factory lubed | Yes | No |
| MX-compatible stem | Yes | Yes |
| Price tier | Budget | Mid-range |
| Street price | varies | varies |
Akko and Kailh both advertise an actuation force, so the two headline figures in this table are measured at the same point and can be read against each other.
Verdict
This is a tactile versus tactile contest: the Akko CS Lavender Purple and the Kailh Speed Copper share the same stroke character, which makes the smaller spec gaps decisive. Travel favors the Kailh Speed Copper: it registers at 1.1 mm where the Akko CS Lavender Purple needs 1.9 mm. Their springs sit close together, just 4 g apart at actuation, with the Kailh Speed Copper the marginally firmer press. Split by use: the Kailh Speed Copper for gaming, the Akko CS Lavender Purple for typing and a shared office.
- Gaming pick
- Kailh Speed Copper
- Typing pick
- Akko CS Lavender Purple
- Office pick
- Akko CS Lavender Purple
Force curves
Akko CS Lavender Purple
Akko publishes no bottom-out force for this switch, so the dashed end of the curve is an estimate, not a spec. Everything up to actuation comes from the published numbers.
Kailh Speed Copper
Kailh publishes no bottom-out force for this switch, so the dashed end of the curve is an estimate, not a spec. Everything up to actuation comes from the published numbers.
Akko CS Lavender Purple or Kailh Speed Copper: the long answer
The table above already holds the answer. Here is what it means under a finger. On distance the Kailh Speed Copper registers at 1.1 mm against 1.9 mm, and the full stroke runs 4.0 mm on the Akko CS Lavender Purple against 3.5 mm on the Kailh Speed Copper. Springs split them by 4 g at actuation: 40 g for the Kailh Speed Copper, 36 g for the Akko CS Lavender Purple. Both are tactiles either way, so both give a finger something to aim at on the way down. None of these gaps is large. Stack them up and they still point somewhere, but gently.
The ears usually get the last word here. Put them through the player above and the Akko CS Lavender Purple lands as poppy snappy tap with an early bump where the Kailh Speed Copper lands as bright early tap; the bump arrives immediately. These demos are synthesized from published specs and documented character rather than studio recordings, which every player on the site says plainly.
On what they cost to fill a board, the Akko CS Lavender Purple is budget friendly, while the Kailh Speed Copper is mid priced. One of them has already been lubed for you and one has not, which is worth more than the price gap if you were not planning to open 70 switches.
Answer the use case and the switch follows. Games point at the Kailh Speed Copper, because the scoring hands it a shorter distance to actuation. Writing points at the Akko CS Lavender Purple, since its keystroke stays consistent and comfortable across a full day of writing. A shared room points at the Akko CS Lavender Purple, as it makes the least fuss of the pair in a shared space. Do the listening first. It costs nothing and it changes minds more often than a spec table does.
Want the full story on either switch? Read the dedicated Akko CS Lavender Purple page and the Kailh Speed Copper page, or test how your current keyboard performs with our free keyboard tester.
Frequently asked questions
Akko CS Lavender Purple or Kailh Speed Copper for gaming?
We pick the Kailh Speed Copper for gaming. The scoring gives it a shorter distance to actuation against the Akko CS Lavender Purple, and both of those show up in a fast game.
Which is quieter, the Akko CS Lavender Purple or the Kailh Speed Copper?
Nothing in either one is built to reduce noise, so on raw volume this is a tie decided by your keyboard rather than your switch. What you will actually hear is a difference of pitch and texture, which the player above shows better than a sentence can.
Akko CS Lavender Purple vs Kailh Speed Copper: which one is the heavier press?
The Kailh Speed Copper, and the comparison is clean: actuation on both sides, 40 g to 36 g.
Which is cheaper to fill a board with, the Akko CS Lavender Purple or the Kailh Speed Copper?
The Akko CS Lavender Purple sits in the budget friendly bracket and the Kailh Speed Copper in the mid priced one. We do not hold a reliable per-switch price for both, so the bracket is the honest answer rather than a total.
More comparisons
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