The HI-Lock Nozzle PCBA G (Creality Part Number: 2101020288) is a genuine tool head adapter board and nozzle module designed for Creality HI series 3D printers. It manages electrical connections, signal transmission, and thermal stability for the hotend assembly.Brand Compatibility: Built specifically for the Creality Hi series printer ecosystem.Integrated Processor: Features an on-board GD32F303CBT6 microcontroller chip for efficient local toolhead processing.Thermal Tolerance: Rated to withstand extreme environmental heat and volatile emissions up to 105°C.Signal Support: Manages lines for the heating cartridge, thermistor, auto-leveling strain gauge, and cooling fans.