IE-SFPs, SFP+'s and XFPs are compact transceivers which function as modular connectors. Available for copper (RJ45) and all common fiber modes, wavelengths and data rates, they allow network operators to connect different interface types into the same network equipment, via an SFP/SFP+/XFP port. The cost of cable upgrades is greatly reduced - preserving the investment in costly networking equipment, for the price of a relatively inexpensive SFP, SFP+ or XFP. More and more network equipment is being designed with these ports to take advantage of their flexibility, and to take the uncertainty and guesswork out of expensive equipment purchases.Caractéristiques
Fixed fiber ports don't offer users much flexibility. Removable SFP modules make it easy to connect either Multimode or Single-mode fiber on the fly.