Check the listing for details. Laser Module Interface Adapter Board for CNC Engraver Cutter Machine Controller. Color: 1pc/pack, Condition: New, Made in China. Listed at 17.50 USD. Description: 20W 40W 80W Laser Interface Driver Adapter Board for Laser Engraving Cutting Module Head Transfer Board for CNC Engraver Cutter By HUAHENGCHI Package includes: 1 x Driver Adapter Board with transparent shield 2 x M5*8 screws 2 x M5 Sliding Nut 1 x 40cm 2pin connection cable Feature: 1. Compatible with DC12V, DC24V laser modules and CNC controller boards. 2. Use an external power adapter to power the laser module when the voltage of the laser module and the controller is different. 3. Convert 2pin xh2.54, 4pin ph2.0, 4pin xh2.54 laser interface on the controller to be 3pin to match a laser module which has a 3pin laser socket on the driver board when the voltage of the laser module and the controller is the same 12V or 24V.