This product is a core component of the optical fiber distribution system, integrating functions of optical cable fusion splicing, residual fiber coiling and storage, optical path distribution, and joint protection. Adopting a modular pull-out structure, it manages optical cables and pigtails in layers and is compatible with multi-specification adapters such as FC and SC. The adapters are installed at a 30° bevel angle to ensure the optical fiber bending radius and prevent laser eye damage. Suitable for stranded and ribbon optical cables, it is widely used in equipment like ODF racks and optical cable cross-connect cabinets, applicable to optical fiber network scenarios such as equipment rooms and base stations, with convenient construction and maintenance.