SFP+ (Small Form-factor Pluggable Plus) Optical Module: Refers to SFP modules with increased data rates, making them more sensitive to electromagnetic interference (EMI). They have more skirt fingers on the shell and tighter fitting cages. Optical modules typically have an electrical interface on the side that connects to the inside of the system and an optical interface on the side that connects to the outside. An optical module usually consists of an optical transmitting device (TOSA, including a laser), an optical receiving device (ROSA, including a photodetector), functional circuits,main control circuit board (PCBA), housing and optical (electrical) interface and other components. There are many types of optical modules, and there are several standard ways to categorize them, such as according to different package forms, different. Optical modules are key transmission components in communication networks, and their applications, technologies, types, and terminology are diverse.