Mainboard for Creality Neptune 4 Plus / Neptune 4 Max (TL4974/TL4976) – Ribbon Cable Versions

Screen's dark, motors aren't responding, and your Neptune just won't boot. That's a mainboard failure, and it's the part that ties every motor, heater, and sensor together. This is the direct replacement for Neptune 4 Plus and Neptune 4 Max printers using ribbon cable wiring (TL4974/TL4976). Swap the old board out, seat this one, reconnect your cables – sorted

• Direct replacement mainboard for Creality Neptune 4 Plus and Neptune 4 Max
• Part numbers TL4974 / TL4976 – suits ribbon cable wiring versions only
• Connects motors, hotend heater, bed heater, and display to one board
• Drop-in swap: unplug old board, seat this one, reconnect existing cables
• Restores full printer control after mainboard failure