Common optical module types such as SFP, GBIC, XFP, and XENPAK, along with optical interfaces like FC, SC, and LC, each have their unique characteristics that make them suitable for specific application scenarios. These modules are responsible for converting electrical signals into optical signals and vice versa, enabling high-speed, long-distance communication. Whether in corporate LANs, data centers, or long-haul telecommunications, optical modules are essential for reliable data transmission. It is also known as a small form-factor pluggable or mini GBIC. According to the distance between network devices, we need to select the.