MMD Fairy switch is a Linear switch. Designed originally and manufactured by Mengmoda (MMD). The MMD Fairy switch has characteristics of smoothness, stability, confirming & thick feeling of actuation​, and the muffled sound feedback. A lubricate process is done with GPL-205G0 Lubricates, during the manufacture of the MMD Fairy Switch. The lubricate process gives the switch more smoothness and eliminates sounds made by the crosspoint contact. It also enhances the rich feedback feeling.