Amazon.com: OMTech K40+ Laser Engraver Motherboard Upgrade, Replacement Control Board for CNC CO2 Laser Cutter Engraver Machines with Rotary Axis Autofocus Support, Smoothie Mainboard for LightBurn K40 Engraving
K40 Whisperer USB Driver Setup
Amazon.com: US Stock Module Type 180W RECI W8 CO2 Laser Cutter Engraver Laser Cutting Machine with Lightburn Software 1300x900mm Working Area for Cuttng Engraving Wood/Glass/Acrylic/Leather/Rubber