SpeedyFiberTX LC to LC Fiber Patch Cable, Corning SMF-28 Singlemode 9/125um Ultra Optical Fiber, Duplex, Yellow Riser OFNR Cable JacketSpecifications Insertion Loss 0.2 (dB) Return Loss 50 (dB) Attenuation at 1310nm 0.32 (dB/km) ^^ at 1550nm 0.18 (dB/km) Operating Wavelength 1285nm - 1625nm Operating Temperature -20C to +70C Ferrule Material Ceramic Compliance ITU, UL, CE, IEC, TIA, RoHSFeatures and Benefits Slim 2.0 mm zipcord cable and durable LC duplex connectors with short boots for easy deployment Easy to identify fiber channels with color-coded heat shrink tubing ^^ Yellow to Yellow, White to White Light weight and flexible Riser OFNR rated PVC zipcord cable jacket Every LC connector termination is tested to ensure the quality in network performance