Modular "pluggable" transceiver technology vastly increases the flexibility of network devices with improved product reliability and longevity. SFP and XFP transceivers may be used interchangeably in standards-compliant devices.
Interchangeable transceivers allow a single device to operate with a wide selection of media and protocols. Upgrading the media used on a port requires only seconds with a hot-swap SFP or XFP, once the new media is in place.