The Raise3D Pro3 HS Series is a powerful professional-grade machine that builds upon the various performance improvements introduced on Raise3Ds flagship Pro3 Series. It improves on printing speed, production efficiency and reliability. With the goal of bestowing general manufacturers and print farmers with the ability to produce small batches efficiently and reliably, whether theyre end-use parts or tooling fixtures. Build Volume (W D H) Single Extruder Print: 300 300 300 mm (11.8 11.8 11.8 inch) Dual Extruder Print: 255 300 300 mm (10 11.8 11.8 inch) Built-in Hyper FFF Technology Hyper Core and Industrial High-Performance Materials Available For Printing Automatic Filament Switching External 2.5kg Storage Boxes (sold separately) Drive System Optimization New RFID Sensor New Printing Build Plate Automatic Filament Unloading Air Flow Manager+EVE Smart Assistant+Auto Bed Leveling+Automatic Pausing with Door/Lid Sensors+HD Camera