Next, you need to determine the type of optical cable connector that your switch supports. Most common connectors include LC, SC, and ST. SFP ports, also known as Small Form-Factor Pluggable ports, are essential components found in a variety of network and storage devices including switches, servers, routers, and network interface cards (NICs). The connector acts as the physical interface where the. SFP port (SFP slots or SFP interfaces) is a recessed slot in a network device for accommodating a matching small form-factor pluggable (SFP) connector to enable data cables plugged in. Correspondingly, fiber or. For the Fibre Channel connections, the switch uses SFP+ transceivers that support any combination of Short Wavelength (SWL), Long Wavelength (LWL), and Extended Long Wavelength (ELWL) optical media.