Small Form-factor Pluggable (SFP)
SFP is short for Small Form-factor Pluggable. This is a connection port to which certain components can be connected to establish a network connection. These components or modules are SFP transceivers that are connected to Gigabit Ethernet connections or Fiber Channel. SFP ports are mainly found in routers and switches. The SFP port has (relatively) small dimensions, which allow it to be installed in network devices with many ports. SFP ports are flexible and future-proof and can be quickly replaced when needed. Network devices with SFP ports can also use other types of transmissions.