PCB Based Keyboard with LED can be assembled on base plates of aluminium, mild steel epoxy etc. The Keyboard has operating temperature ranging from -25 to 75 ° C and has storage temperature ranging from -30 to 85 ° C. The Keyboard has various mounting and termination method such as adhesive back, keyboard mounted on backing plate, sliding type arrangements for keyboards with rigid base keyboards mounted by screws visible/ invisible from front side etc are followed. The Keyboard has contact resistance circuit dependent of generally less than 100 ohms and has switch logic bus. The PCB Based Keyboard with LED has key movement ranging from 0.18 mm. To 0.42 mm, dome operation up to 10 million operations and has actuation force from 150 gm to 350 gm.