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CISCO - Catalyst 6900 Series 4-port 40 Gigabit Ethernet Fiber Module With Dfc4 - Expansion Module - 4 Ports (WS-X6904-40G-2T).
Cisco WS-X6904-40G-2T. Ethernet LAN data rates: 40000 Mbit/s, Networking standards: IEEE 802.1D, IEEE 802.1Q, IEEE 802.1p, IEEE 802.1s, IEEE 802.1w, IEEE 802.3ad, IEEE 802.3ae, IEEE.... Fiber optic connector: MPO, SC, Fiber type: Multi-mode, Transmission distance (max): 10 km. MAC address table: 128000 entries, Switching capacity: 80 Gbit/s, Forwarding rate: 60 Mpps. Buffer size per port: 10 MB, Compatibility: Cisco Catalyst 6900. Management platform: IGMPv3