Cherry MX Brown vs Kailh Speed Copper

The Cherry MX Brown and the Kailh Speed Copper are often cross-shopped. The main differences: the Kailh Speed Copper is lighter to actuate (40g versus 55g); travel is 4 mm on the Cherry MX Brown and 3.5 mm on the Kailh Speed Copper; stock they sound different: muted, papery versus light, tappy.

Cherry MX Brown Tactile · 55g
Kailh Speed Copper Tactile · 40g

Choose the Cherry MX Brown if

  • you want a switch popular for office boards.
  • you want a switch popular for all-rounders.
  • you want a heavier, more deliberate press (55g).

Choose the Kailh Speed Copper if

  • you want a switch popular for fast tactiles.
  • you want a switch popular for gaming plus typing.
  • you want a lighter keystroke (40g).

Cherry MX Brown vs Kailh Speed Copper, spec by spec

Cherry MX BrownKailh Speed Copper
Type Tactile Tactile
Compatibility Standard MX sockets Standard MX sockets
Actuation force 55g 40g
Bottom-out force n/a n/a
Pre-travel 2 mm 1.1 mm
Total travel 4 mm 3.5 mm
Stem POM POM
Top housing nylon PC
Bottom housing nylon nylon
Spring single-stage single-stage
Factory lube none none
Pins 5-pin 3-pin
Price / switch $0.35 $0.35
Sound profile muted, papery light, tappy
Released 1994 2016

Highlighted rows are where the two differ; a check marks the objectively stronger spec (price, battery, modability). Feel and preference rows never get a check. Fields marked n/a are unpublished by the maker; we list only verifiable numbers.

Where they sit among all 227 switches we track

Actuation force lightest heaviest
Cherry MX Brown 55g
Kailh Speed Copper 40g

70% of the 198 switches tracked here actuate lighter than the Cherry MX Brown; 7% of the 198 switches tracked here actuate lighter than the Kailh Speed Copper.

Total travel shortest longest
Cherry MX Brown 4 mm
Kailh Speed Copper 3.5 mm

57% of the 224 switches tracked here have shorter total travel than the Cherry MX Brown; 16% of the 224 switches tracked here have shorter total travel than the Kailh Speed Copper.

Price per switch cheapest priciest
Cherry MX Brown $0.35
Kailh Speed Copper $0.35

30% of the 193 switches tracked here cost less per switch than the Cherry MX Brown; 30% of the 193 switches tracked here cost less per switch than the Kailh Speed Copper.

Where to buy the Cherry MX Brown

Where to buy the Kailh Speed Copper

No verified retailer link right now. Check the maker or your usual switch retailers.

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