LIHUIYU M3 Nano CO2 Laser Cutter Controller Motherboard for Engraving Machine DIY 3040 3020 K40 Model:Controller(new) A3-b: Laser head nozzle

A3-b:  Laser head nozzle

double protection window design

0T5-10(40KW)

Need to upgrade

Power: 20W 30W 50W

LIHUIYU M3 Nano CO2 Laser Cutter Controller Motherboard for Engraving Machine DIY 3040 3020 K40 Model:Controller(new) A3-b: Laser head nozzleCO2 Laser Controller Brand: LIHUIYU Model: M2 M3 Nano Controller(new): New Controller Without Pannel and USB dog Pannel: 1pc Pannel+1pc Wire USB: 1pc USB Dongle B (The New Controller does not require a Panel and USB Dongle ,and the separate panel is only used for older Controller.) Notice: We don't have manuals with English version. Please make sure you know how to config it before purchasing. (M2 Nano Laser Controller Motherboard Upgrade M3 Added a