ST/ST plenum-rated duplex 62.5/125 multimode fiber patch cable for gigabit Ethernet, FDDI, multimedia, ATM or any application that requires high speed data transfer. OFNP-rated for in-wall use without conduit. The ST connector features a bayonet locking system. The plenum rating provides the fire protection required to run this cable within walls and air plenums without using conduit. The patented injection molding process provides each connection greater durability in resisting pulls, strains and impacts from cabling installs. Each cable is 100% optically inspected and tested for insertion loss before you receive it. A pull-proof jacket design surrounds the popular 62.5/125 multimode fiber, immune to electrical interference.