The Neutrik SCNO12SAX-A is an ergonomic, black rubber, pollutant protection cover for opticalCON MTP SM APC cables including the front housing (cables sold separately). Due to the innovative design this versatile rubber boot can be safely locked with the spring loaded push/pull mechanism of the cable connector front and protects the fiber ferrules of contamination especially during spooling of cables. It can also be mated with the chassis cover to keep the interior clean.