RFID Smart Filament for Creality CFS: Hyper PLA RFID is automatically recognized by Creality CFS to help optimize print settings and track filament usage for efficient, low-waste printing (for K2/Hi Series with CFS). High-Speed PLA Up to 600mm/s: Designed for fast printing from 30600mm/s with a high-fluidity, fast-cooling formulagreat for rapid prototyping, batch jobs, and quick iteration.