The Cisco Small Form-Factor Pluggable (SFP), Enhanced Small Form-Factor Pluggable (SFP+) device for use on the Cisco MDS 9000 Family of product is hot-swappable transceiver that plug into ports on the Cisco MDS 9000 family director switching modules and fabric switches. These transceiver give users the flexibility to choose different cabling types and distances on a port-by-port basis.