The complete guide to mechanical keyboard switches for gaming
The complete guide to mechanical keyboard switches for gaming
- Keycap. The plastic top cap with the letter printing.
- Stem. This is what the keycap is mounted on. The shape of the stem differs from switch to switch. 
- Switch housing. The case that holds all the components together.
- Slider. The slider pushes against the spring and interrupts the connection between the metal contact leaves mounted on the side off the switch.
- Metal contact leaves. These are what registers a keystroke when they strike one another.
- Spring. The spring wraps around the base of the slider and pushes the switch back into its resting position after release.
Rubber dome switches, on the other hand, usually consist of only 3 to 4 parts:
- Keycap
- Slider
- Silicon membrane layer
- Printed circuit board (PCB) with electrical circuits
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