ELEGOO 24V Power Supply for Neptune 3 & Neptune 4

The enclosed switching supply that lives in the Neptune's base. It gets replaced when the printer won't power up, cuts out mid-print as the bed pulls current, or starts buzzing and smelling hot. The case carries ELEGOO branding, but the company doesn't list the supply as a spare part in its own store.

Specifications

• 24 V output; about 350 W for Neptune 3, 4 and 4 Pro, 360–400 W for the 4 Plus and 4 Max
• 115 / 230 V input selector switch on the case
• Built-in cooling fan and vented steel housing
• Seven-position screw terminal block with a safety cover

Compatibility: Neptune 3, 3 Pro, 3 Plus, 3 Max, Neptune 4, 4 Pro, 4 Plus and 4 Max — but the wattage has to match your model, a separate variant in the listing. Some sellers also claim the Centauri Carbon and OrangeStorm Giga. Check the voltage selector before first power-up: setting it wrong for your mains kills the unit.