### Full-function Multi-port Integrated Layout Pre-reserved independent connectors for heating cartridge, thermistor, filament cut module, material runout sensor, cooling fan and print head camera. ### Precise Standard Dimension Parameter Finished fixed size: 43mm×39mm×7.4mm, fully fit original print head inner installation cavity without space modification. ### High-quality Industrial Grade Component Adopts stable main control chip and certified electronic components, anti-surge & anti-interference for long-duration continuous printing. ### Complete Install Accessory Included Comes with 2pcs fixed mounting screws, finish fast fixation directly after disassembly of old damaged board. ### Plug-and-play Modular Replacement Each port uses standard lock-in terminal socket, one-by-one plug wiring without welding or circuit modification.