The major difference between Neptune 4 and Neptune 3 series is below:A. Neptune 4 series has various extended ports to support remote control - LAN, USB-C, USB 2.0B. Neptune 4 series is equipped with a robust cooling system with 4x individual blowers which makes high speed printing possible.The major difference between Neptune 4 and Neptune 4 PRO is below:The Pro version has segmented heat on the build plate.The Pro version has metal linear rail on X/Y axis instead of the rubber wheels.* the touch screen is ONLY interchangeable with Neptune 3 PRO and later models* the advertised printing speed at 500 mm/s requires Elegoo RAPID Filament.Same day pick-up available or fast shipping from Las Vegas Nevada 89103 *Neptune 3 Series is still available with us at this link*Neptune 2 (discontinued) Series available with us too at CLEARANCE PRICE - this link*Neptune series parts & hardware - this link This listing is a DIY 3D printer that requires assembly, calibration, modifications & dedication. It’s great only for who love to do homework, research and learn on YouTube as well as on users communities. Please only buy this model if you ENJOY this process. Good Used Condition -> backed with 30-day warranty by our store - you will have a FULLY FUNCTIONAL UNIT OR YOU GET FREE REPLACEMENT (parts/units). It was inspected, cleaned, repaired to full working order and is in overall good pre-owned condition. It WILL contain aesthetic signs of wear/teas/scratches. This item may be repackaged.*REMINDER: this is a used unit. NOT REFURBISHED Open-box Grade A+ -> The item is in like new, never used/assembled condition. It's returned due to buyers' remorse or fulfillment error. It may only show sign of repackaging due to our inspection service (opening the box, taking photos, recording serial #, classifying grades). It's sealed, packaged in the original factory condition with ALL original factory parts/accessories in inspected new or like new condition. -- Compatibility notes -- * touch screen controllers are interchangeable among ALL these 7 models (firmware reflahsing is required)Neptune 3 Pro, 3 Plus, 3 Max, Neptune 4, 4 Pro, 4 Plus, 4 max* main boards are interchangeable throughout the series:Neptune 3 series: 3 Pro, 3 Plus, 3 Max - same main board (firmware reflahsing is required)Neptune 4 series: 4, 4 Pro - same physical main board (firmware reflahsing is required)Neptune 4 Plus, 4 max - same physical main board (firmware reflahsing is required) * hotend assembly is interchangeable throughout the generationsNeptune 3 series: 3 Pro, 3 Plus, 3 Max - same hotend (just plug-in, no action required)Neptune 4 series: 4, 4 Pro - same hotend (just plug-in, no action required)Neptune 4 Plus, 4 max - same hotend (it has a black chip for X axis accelerometer) -- Manufacturer's Description --Max Print Speed: Up to 500mm/hRecommended Print Speed: Up to 250mm/hMax Hotend Temperature: 300°CPre-installed with Klipper firmware121-Point Auto Bed LevelingGantry LED light stripOverheat protection switchNeptune Pro features the following:Intelligent segmented heatbedAll-metal guide rails WHAT ARE THE DIFFERENCES BETWEEN THE ELEGOO NEPTUNE 4 AND NEPTUNE 4 PRO? Model Neptune 4 Neptune 4 Pro Price $259 $299 Intelligent Segmented Heatbed ✘ ✔ All-Metal Guide Rails ✘ ✔
