LC to LC Multimode Duplex Fiber Optic Patch cable?offers a reliable connection with SFP+ and QSFP+ transceivers in 40 and 100 Gigabit networks High bandwidth with laser-optimized multimode fiber (LOMMF) Ideal for 850nm and 1350nm Vertical Cavity Surface Emitting Laser (VCSEL) and LED sources Backward compatible with your existing 50/125 equipment LSZH flame retardant jacket for a safe connection Individually tested & certified to be within acceptable optical insertion loss limits