Cleerline XD fiber optic patch cords deliver extreme performance and reliability for all system connections. XD series patch cords incorporate Cleerline's exclusive SSF&trade; integral polymer as part of the fiber optic glass technology. SSF fibers provide up to 10,000x increased bend and up to 200x increased pull strength compared to standard glass fibers. SSF fibers are extremely durable and are able to endure even repeated tight bending with insensitivity to optical loss at all wavelengths even at very low radii. High quality connectors ensure insertion loss and back reflections that exceed all industry standards.</p>