K2 plus combo key features 16-color printing: 4-bay cfs system lets you print up to 16 colors in one job no pausing, no extra handling. Bigger space, bigger ideas 350 × 350 × 350 mm : large chamber for props, prototypes, rc parts, or printing multiple models at once. High-speed performance with precision: step-servo motion system delivers smooth surfaces and crisp details even during fast, high-acceleration printing. Actively heated chamber for engineering materials: stable temperatures make filaments easier and more reliable to print. Dual ai cameras for fail-safe printing: smart to adjust flow rate and alert failures sturdy matrix frame for stable output: die-cast, enclosed structure reduces vibration for consistent quality, layer after layer. *K2 plus combo: k2 plus 1* cfs 4*500g filament in the box spacepi x4 key features: 4 spools dry and print at once for maximum efficiency dual independent heating chambers 200w 200w ptc heats up to 85 c active dehumidification desiccant regeneration auto silent& edry ui triple safety protection