It is exactly half the size of the older SC Connector, which is why SFP switches can fit 48 ports in 1U. Two Configurations: Duplex LC: The most common. Two fiber ports (TX and RX) side-by-side. Small Form-factor Pluggable (SFP) is a compact, hot-pluggable network interface module format used for both telecommunication and data communications applications. These modules, including SFP, SFP+, and SFP28, are widely used in enterprise networks, data centers, and carrier-grade deployments. An SFP port on a Gigabit switch is a modular interface that accepts Small Form-Factor Pluggable (SFP) transceiver modules. Most modern networking devices, such as Ethernet switches, servers, routers, network interface cards, and fiber media converters, generally have two or more built-in SFP ports.
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