V21 Version Spec Toolhead Control Board for Creality K2 SE 3D Printer with 2pcs Mounting Screws Exclusive

### 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.