What is the SFP port in a Cisco switch?

What is ge sfp port? sfp slot meaning A Gigabit Ethernet Combo port is both a copper port, a RJ-45 interface and a SFP port It supports both sfp slot GE SFP means Gigabit Ethernet Small Form Factor Pluggable Sample 1Sample 2Sample 3

sfp slot switch What is SFP transceiver ? This video will introduce the SFP transceiver