Adapter Plate PCBA for QIDI Tech X-Max 3, X-Plus 3, and X-Smart 3 model 3D printers. This A-4 V1.2 print head controller board ensures optimal performance and compatibility with your QIDI Tech printer. The circuit board features multiple connection ports with color-coded interfaces for easy installation, dedicated BOOT and RESET buttons for simple maintenance, and robust heat dissipation components to maintain stability during extended printing sessions. This replacement part is an ideal solution for replacing a worn component. The precision-engineered PCBA integrates seamlessly with your printer's system, helping to maintain print quality and consistency. Keep your QIDI Tech 3D printer performing at its best with this high-quality controller accessory that's built to meet the exacting standards of your printing projects.