The Corning OSNP-SCA-250-Z OptiSnap Connector is a high-quality SC singlemode connector designed for optical fiber networking. With a 250 um aperture size, this pack of 25 connectors features a SC connector on one end for easy installation and compatibility with various networking components. The panel mount feature makes it convenient to securely attach the connector to a wall plate or panel, ensuring a reliable connection for your networking needs.