OS2 LC/UPC SC/APC Duplex Fiber Patch Cable Singlemode OFNR, Corning 9/125 Single-mode fiber Jumper Cord. Corning optical fiber glass 9/125 core, terminated with 1.25m ceramic ferrule LC/UPC & SC/APC polished connectors with Duplex clips. Yellow OFNR PVC 2mm diameter jacketed, Single Mode Fiber, Zip-cord, TAA, Jumper.