Small Form Factor Pluggable (SFP) is a compact, hot-pluggable transceiver used for data communications applications. It is designed to support SONET, Gigabit Ethernet, Fibre Channel, and other communications standards. SFPs are available in a variety of form factors, including single-mode and multi-mode, and are used in a variety of networking applications. They are typically used in switches, routers, and other networking equipment to provide high-speed data transmission. SFPs are also used in fiber-optic cables to provide a secure connection between two devices. SFPs are a cost-effective and reliable solution for data communications applications.