Key Features Smart Filament Management System: Automatically manages up to four filament spools with real-time monitoring for run-out, tangles, and cutter wear — reducing failed prints and saving time. Clean, Minimal Waste Printing: External cutter and buffer collect filament waste neatly outside the printer, eliminating debris inside the machine for a tidier, more efficient workflow. Auto Filament Identification: Using Creality RFID-tag filaments, CFS-C auto-reads filament type and presets the correct settings — no manual configuration needed. Auto Color Mapping & Relay: For multicolor printing, the system automatically switches to another spool of the same material and color when one runs out, keeping prints going seamlessly. Built-In Sensor Protection: Integrated sensors detect filament run-out or tangles and pause printing safely, protecting both your print and your hardware. Easy Upgrade to Multicolor Printing: Compatible with Creality K1 Series and select models, CFS-C upgrades your 3D printer to advanced multicolor printing without radical hardware changes. Note: CFS-C cannot be used to print TPU filament. If your printer supports TPU printing, please use the printer's spool holder for printing. The CFS-C can connect to a maximum of one CFS unit simultaneously and only supports 4-color printing. The CFS does not include 4 rolls of filament.; Images are for reference only.