Advantages of the SFP port for Gigabit Ethernet Switches

What are the advantages of a small pluggable (SFP) port for a Gigabit Ethernet switch?

How do I connect the four SFP ports of a d-link DGS 1248 t smart switch?

I think the main advantage of the SFP port is the flexibility to connect to the network. The SFP port is a hot-swappable input/output device that can be plugged into a Gigabit Ethernet port or slot to connect the port to the network. SFP ports can be applied on many products and can be interchanged on a port-by-ports basis with products such as 1000BASE-SX, 1000BASE-LX/LH, 1000BASE-ZX, or 1000base-bx10-d/u. SFP ports are available for Gigabit Ethernet and Fibre Channel. They can provide a flexible and cost-saving solution for corporate networks, data centers, and so on.

To connect to a d-link switch, you need to purchase the appropriate SFP module. It should have a fibre optic connection to the remote network that is connected back and forth. These ports are sold separately and you need to purchase them separately from the local vendor.