An SFP (Small Form-factor Pluggable) is a hot-pluggable, standardized transceiver module that converts electrical signals from a switch or router port into optical or copper signals for fiber or copper links. These modules, including SFP, SFP+, and SFP28, are widely used in enterprise networks, data centers, and carrier-grade deployments. The MSA stands for Multi-Source Agreement and is an agreement between multiple manufacturers to implement standards for optical modules. They are designed to provide the same basic functionality and operability across different suppliers and companies. Whether you are creating a 100-Gbps or 400-Gbps, small form-factor pluggable (SFP) module, SFP+ transceiver, XFP module, CFP, X2/XENPAK module.