Mechanical Keyboard
Each key of a mechanical keyboard has an independent switch (called "axis"), which is turned on or off by metal contacts to achieve input. It is characterized by stable feel and strong durability, and the feel will not change after long-term use. Common axis bodies include blue axis, red axis, brown axis, etc., which are suitable for games and typing.
Membrane Keyboard
The interior of a membrane keyboard is composed of multiple layers of flexible circuit film, and input is achieved by pressing the upper and lower layers of film to contact. It is characterized by low price and low noise, but the feel may deteriorate due to aging of the material after long-term use. It currently occupies a major market share.
Conductive Rubber Keyboard
This keyboard connects the contacts through conductive rubber, and the conductive rubber connects the circuit when the key is pressed. It is a product that transitions from mechanical keyboard to membrane keyboard, and has some characteristics of both.
Contactless electrostatic capacitive keyboard
The encoder is driven by changing the distance between electrodes to cause the capacitance to change, without physical contact. Its characteristics are no wear and good sealing, but the price is relatively high and it is a high-end product.
