Buy with Confidence: With Monoprice's Lifetime Warranty on all Cables, you can rest assured we stand behind our products and our customers. Monoprice is proud to offer a full line of high-quality Single-mode and Multi-mode duplex cables using optical fibers made by Corning The cable has a color-coded Dual LC connector on one end and a Dual SC connector on the other end The cable jacket is OFNR (Optical Fiber, Non-conductive, Riser) rated by UL