Cisco Distributed Forwarding Card 3B - Switching accelerator - refurbished - plug-in module - for P/N: WS-X6704-10GE-RF,

Cisco Distributed Forwarding Card 3B - Switching accelerator - refurbished - plug-in module - for P/N: WS-X6704-10GE-RF, WS-X6724-SFP-RF, WS-X6748-GE-TX-RF, WS-X6748-SFP=, WS-X6748-SFP-RF

The Catalyst 6500 Distributed Forwarding Card-3 is installed in DFC-enabled line-card modules that perform distributed forwarding supported by the Catalyst 6500 Supervisor Engine 720 as a field upgrade.