Kailh Choc Switch
This became around 2016, and became very popular around 2019.
It is a low-profile switch. Actuation travel is 1.5 mm. They have different models that are {linear, tactile, clicky}.
Dec 10, 2016
Chyrosran22
Choc Switch Spec
Keyboards Using Choc Switch
For example
Kailh Choc V2 Switch
The Kailh Choc V2 Switch came out on 2020-03. It is a low-profile switch with a Cherry MX compatible stem. (so that keycaps for Cherry MX can be used.) [see Cute Keycaps]
Key Switch Topic
- Key Switch Mechanisms
-
Rubber Dome -
Scissor Switch -
Cherry MX Switches - Noise Comparison
- N-key Rollover and Ghosting
Buckling Spring- Kailh Switch
- Kailh BOX Switch
-
Kailh Choc Switch 
Romer-G Switch
Topre Switch
Niz Switch-
Varmilo EC 
Optical Switch- XMIT Hall Effect Switch
ALPS Switch- Mechanical Keyboard and RSI