Features: High-quality optical fiber plugs is used to prevents falling off and deformation. High-performances single-mode fiber cores, easy to welding, small optical loss, high-speed and stable transmission. Adopt brand-new high-quality ceramics ferrule, with stable data interchangeability, high plugging and unplugging times, stable and reliable performances. The interfaces at both ends of each optical fiber is equipped with dust jackets to prevent the connectors from being damaged. Used in optical fiber communication room, fttp, optical fiber data transmission optical fiber CATV, local area networking optical fiber sensors, optical test equipment. Specifications: Component:Plastic Length: Approx.300cm/500cm/1000cm Ferrule: ceramics ferrule Outer cover: PVC outer sheath Insertion loss: < 0.2dB Return loss: > 35dB Working temperature: -40℃-85℃ Package Includes: 1pcs Fiber Optical Cord note: 1.Please allow 1-2cm errors due to manual measurement, make sure that you donot mind befores you order. 2.Due to the differences between different monitors, the picture may not reflect the actual color. Thanks for your understandings.