This is a large format 3d printer with a 420mm x 420mm x 480mm build volume. Max speed of 500 mm/second and a 300 degree C hot end. It has wi-fi and a USB camera to monitor the printer. I used it to print PLA and PETG. It also has auto bed leveling. It currently has a 0.6mm nozzle installed but includes a spare 0.4mm nozzle.
Added a picture of an Ender 3 next to the Neptune 4 Max for size comparison.
Asking $215 or best offer. Will meet in Traverse City or immediate area.