Extruder PCB Board for ELEGOO Neptune 4 Series

The print head board for the Neptune 4 series. It gathers the heater, thermistor, fan, LED and probe connectors in one place and exposes a single USB-C port that runs back to the mainboard. You replace it when the printer throws a thermistor error, the part-cooling fan refuses to spin, or the head goes dead after a short — usually the aftermath of leaked filament or a scorched connector.

Specifications

• Genuine Neptune 4 series extruder board
• USB-C port for the cable back to the mainboard
• Headers for heater, thermistor, two fans and LED
• Heatsink on the power MOSFET, stock mounting hole pattern

Compatibility: ELEGOO Neptune 4, Neptune 4 Pro, Neptune 4 Plus and Neptune 4 Max. Check the marking on the board you removed before ordering — the series shipped with more than one revision.