The Cisco®Small Form-Factor Pluggable (SFP), Enhanced SFP (SFP+), and X2 devices are hot-swappable transceivers. The transceivers plug into Cisco MDS 9000 Family director switching modules and fabric switch ports. They allow you to choose different cabling types and distances on a port-by-port basis.
Cisco 16-Gbps Fibre Channel SFP+ Transceivers
The Cisco 16-Gbps Fibre Channel SFP+ Transceivers (Figure 11) provide Fibre Channel connectivity for 4/8/16-Gbps ports on the MDS 9000 Family platform. Three types are available: the Cisco Fibre Channel Shortwave SFP+ (part number DS-SFP-FC16G-SW), the Cisco Fibre Channel Longwave SFP+ (part number DS-SFP-FC16G-LW), and the Cisco Fibre Channel Extended Longwave SFP+ (part number DS-SFP-FC16GELW). Each offers 4/8/16-Gbps autosensing Fibre Channel connectivity.