what is sfp

SFP stands for Small Form-factor Pluggable, which is a compact, hot-pluggable network interface module format used for both telecommunication and data communications applications. An SFP module is a small modular transceiver that plugs into an SFP port on a network switch or server. It is mainly used with copper or fiber optic cables and facilitates high-speed communication between switches and network components such as routers and other devices. SFP modules are hot-pluggable, which makes it easy to adjust existing networks without having to redesign the entire cable infrastructure. SFP sockets are found in Ethernet switches, routers, firewalls, and network interface cards. They are used in Fibre Channel host adapters and storage equipment. SFP provides equipment with enhanced flexibility due to its low cost, low profile, and ability to provide a connection to different types of optical fiber. SFP compatibility is found within the multi-source agreement (MSA), which is an agreement supported by a number of manufacturers that work together to try and provide a reliable means of mixing and matching SFP brands.