OS2 LC LC Single Mode Fiber Patch Cable | 1Gb/10Gb Duplex 9/125 LC to LC Singlemode Jumper Cord. Manufactured with the highest quality Corning optical fiber and terminated with small form factor 1.25mm ceramic ferrule LC fiber cable connectors (duplex lc clips included). Industry standard yellow, 2.0mm outer diameter, OFNR (riser rated), zip-cord reinforced, PVC jacket.