What is an SFP Port in a PoE Switch? Explained!

Hi im looking at buying a TP-Link TL-SG2210MP, I need 10 ports, is it possible to use a rj45 lan module plugged into sfp port and connect a normal lan cable

Case analysis: This is about connecting 1000Mbps switches on the same rack SFP port is used instead of RJ45 port which can cause electrical interference

sfp slot Buy Netstar 101001000 Mbps Ethernet to SFP Media Converter with SFP Slot – Supports 1G SX, 1G LX SFP Modules 1 Port SFP to 1 RJ45

sfp slot switch WO-KGA-SFP » Standards: IEEE abz; Port #1: 101001000 Mbps RJ-45; Port #1 max distance: 100 m; Port #1 cable type: UTPSTP ; Port #2: SFP,