Double-Sided PCBChina Professional OEM 40% 50% 60% 65% 75% Tkl 80% SMT DIP RGB Type C 3 Pin 5 Pin Switch Qmk Keyboard PCB Assembly Design, Find details about China Mechanical Keyboard PCB, Keyboard PCB Hot Swap from Professional OEM 40% 50% 60% 65% 75% Tkl 80% SMT DIP RGB Type C 3 Pin 5 Pin Switch Qmk Keyboard PCB Assembly Design