Cisco C3850-NM-2-40G — Catalyst 3850 2-Port 40GE Network Module

Product Name: Cisco C3850-NM-2-40G

• Description: 2-port 40 Gigabit Ethernet network module designed for Cisco Catalyst 3850 series switches. Provides high-speed uplink connectivity via QSFP+ ports, enabling 40GbE aggregation and stacking capabilities for enterprise campus and branch networks.

• Manufacturer: Cisco Systems

• Part Number: C3850-NM-2-40G

• Compatibility: Cisco Catalyst 3850 series switches (WS-C3850 models with network module slot)

• Typical Applications: Enterprise campus uplinks, Switch stacking, High-speed aggregation, Data center top-of-rack, Branch office connectivity, 40GbE backbone links

Form Factor: Network Module (NM) — hot-swappable

• Ports: 2x 40 Gigabit Ethernet (40GE)

• Port Type: QSFP+ (Quad Small Form-factor Pluggable Plus)

• Data Rate: 40 Gbps per port

• Standard Compliance: IEEE 802.3ba 40GBASE-SR4/LR4/CR4 (depending on optics used)

• Media Support: QSFP+ transceivers and DAC cables (sold separately)

• Connector: QSFP+ cage (accepts QSFP+ optics or DACs)

• Switching Capacity: Adds 80 Gbps to switch backplane

• Power Consumption: ~15W typical (module only, excluding optics)

• Operating Temperature: 0°C to 45°C

• Storage Temperature: -25°C to 70°C

• Humidity: 5% to 95% non-condensing

• Hot-Swappable: Yes

• Dimensions: Standard Cisco 3850 network module form factor

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