Features: Experience high Performances connection with this Fibre Optical Adapter, with advanced design that significantly reduces insertion and return loss for superior signal quality in high speed internet applications. Crafted from premium materials, this adapter offers excellent oxidation resistance and durability, ensuring long terms stability across various environmental conditions. Ideal for internet engineers, enterprise IT departments, and optical communication manufacturers who demand Precisions and stability in their fiber Optical connection. Perfect for use in data centers, enterprise internet , and communication base stations, enhancing signal transmission reliability and boosting overall internet Performances . The square flanges head coupler structure provides a secure connection, preventing loosening or detachment due to external forces like vibration or pulling, making it a reliable choice for critical internet infrastructures. Specifications: Material: plastic Size: about 11x24x35mm/0.43x0.94x1.38inch Insertion loss：<0.2dB Storage temperature: -25C~85℃ Working temperature: -25C~70℃ Package Includes: 50pcs Simplex Coupler Or 100pcs Simplex Coupler note: Please allow 1 to 3cm error due to manual measurement, please make sure you do not mind before you bid, Due to the differences between different monitors, the picture may not reflect the actual colorful of the item.