The exterior connectorized NAP/CTO box is used as a termination point for the feeder cable to connect with drop cable in FTTH network building. Compared to the traditional FDB box, the installation of pre connectorized termination box no need to open the box to assemble the optical connector, which can reduce the installation time and save labor cost. The pre-con box perfectly compatible with all kinds of SC fast connectors, based on the field assemble technology, the technicians can make the patch cord of any length according to their needs, no need polish. each connector can be completed within 2 minutes. High efficiency, reliable quality and cost-effective makes the preconnectorizado solution the best choice for telecom operator and ISP distributors.