0G990743 is a multiple key mechanical keyswitch assembly with fixing pins designed for keyboard applications. This MX module keyswitch features a 1x3 keycap size with 8mm cylindrical keycap type and dimension "A" of 38.1mm. The switch offers 4mm actuation travel with quick actuation capability and supports optional integrated color LED, decoupling diode, or wire bridge. Electrical specifications include a maximum switching voltage of 12 VAC/DC, switching current of 10 mA AC/DC max, and dielectric strength of 500V/50Hz. The module provides IP40 protection class, operates within -10°C to +70°C temperature range, and features high-quality gold alloy contacts with stainless steel spring for durability up to 50x10^6 cycles at 5V, 1mA.