The Cisco® 40GBASE CFP transceiver modules are hot-swappable input/output devices that plug into a 40 Gigabit Ethernet CFP port of a Cisco switch or router. They offer customers versatile 40 Gigabit Ethernet connectivity options in core and distribution layers of data center, enterprise, and service provider networks.
Multirate 40GBASE-LR4 and OTU3 C4S1-2D1 CFP Module for SMF
