Trying to understand SFP ports on switches : rnetworking

FL SFP SX - Media module - 2891754 sfp slot Industrial Gigabit Unmanaged PoE Switch with SFP slot DIS-100G-5PSW Product Status: Live Live 4 x 1001000BaseT PoE ports, 1 x 1001000BaseSFP slots; 120 W sfp slot switch transceiver into an SFP port because SFP+ does not support speeds less than 1Gbps SFP+ module becomes the most popular 10 Gigabit Ethernet module in the market

sfp slot meaning SFP port is used for optical fibre connectivity in the RouterSwitch unlike Cat6 connectors in LAN network