The optical fiber attenuator serves as a critical component for precisely controlling optical signal power and safeguarding core equipment against potential damage caused by intense light. The product utilizes either evaporative metal film technology or doped optical fiber techniques to achieve accurate and stable attenuation levels, along with low insertion loss, high return loss, and superior overall performance. The optical fiber adapter offers a variety of interface options, including FC, SC, LC, and ST, ensuring full compatibility with both single-mode and multi-mode optical systems. With an attenuation range spanning from 1 dB to 30 dB, the device is well-suited for a wide range of applications, including data centers, CATV networks, long-distance trunk lines, and test and measurement environments. The Nalei optical fiber adapter features a housing constructed from high-strength materials, providing a robust structure with excellent repeatability and long-term reliability. All products have undergone rigorous testing and are certified to meet relevant industry standards.