The QIDI BOX Selector for QIDI Plus4 3D printer is used to monitor filament status in real time and automatically detect issues such as clogs and tangles. It integrates tubes from multiple QIDI BOX units into a single output, ensuring a continuous and stable filament supply to the printer, and enabling efficient multi-color or multi-material printing. The device enables efficient filament management and switching, making your printing workflow smoother and more versatile. The hub includes mounting points for secure installation. The included cable ensures proper connectivity to your QIDI Plus4 printer, while the selector mechanism provides reliable filament path control. This essential accessory helps streamline your 3D printing projects by enabling quick material changes without compromising print quality or requiring complex manual interventions.