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C3850-NM-4-1G
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- CATALYST 3850 4X1GE NETWORK MODULE
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C3850-NM-4-1G
CATALYST 3850 4X1GE NETWORK MODULE
$925.00
$197.00
16 in Global Warehouse
$197.00
79% off
TRUSTED, TRIED, PROVEN
C3850-NM-4-1G Overview
C3850-NM-4-1G is a dedicated network module designed specifically for the Cisco Catalyst 3850 Series switches. This module provides four 1-Gigabit Ethernet ports with RJ-45 connectors, offering reliable, high-speed connectivity for expanding network capacity in enterprise and data center environments. Built to support standard TCP/IP protocols, it delivers the essential performance needed for mission-critical network applications.
Engineered with a modular form factor, the C3850-NM-4-1G integrates seamlessly into compatible Cisco platforms, enabling streamlined installation and upgrade pathways. Its 1Gbps data rate and industry-standard features like auto-negotiation and jumbo frame support make it an ideal choice for organizations looking to enhance connectivity without compromising system stability or performance.
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C3850-NM-4-1G Specifications
| Product Type | Network Module |
| Module Type | Network Module |
| Data Rate | 1Gbps |
| Connector Type | RJ-45 |
| Supported Protocols | TCP/IP |
| Form Factor | Modular |
| Operating Temperature | 0 to 45°C |
| Storage Temperature | N/A |
| Input Voltage | N/A |
| Compatibility | Cisco Catalyst 3850 Series Switches |
| Max Speed | 1Gbps |
| Supported Features | Auto-negotiation, Jumbo Frames |
| Power Consumption | N/A |
| Interface Ports | Ethernet |
| Expansion Slots | N/A |
| Product Name | Cisco Catalyst 3850 4-port 1-Gigabit Ethernet Network Module |
| Height | N/A |
| Width | N/A |
| Depth | N/A |
| Weight | N/A |
C3850-NM-4-1G Use Case
Enterprise Campus Uplink Aggregation with C3850-NM-4-1G
In a large corporate campus environment, the IT team installs the C3850-NM-4-1G 4X1GE Network Module on Catalyst 3850 aggregation switches to provision four dedicated 1 Gigabit fiber uplinks into the distribution layer. This scalable uplink configuration delivers 4 Gbps of redundant bandwidth with link aggregation, ensuring seamless campus-wide connectivity, minimized latency and non-disruptive capacity expansion.
Branch Office Converged Voice & Data Infrastructure
A multi-site retail chain integrates the C3850-NM-4-1G module into its Catalyst 3850 stackable switches to converge VoIP, POS and guest-Wi-Fi traffic over four separate 1 Gigabit uplinks to the MPLS WAN. This converged design simplifies management through a single control plane, enforces QoS policies for crystal-clear voice calls and achieves link redundancy for up to 99.99% uptime.
Industrial IoT Edge Segmentation and Security
In a smart manufacturing facility, network engineers deploy the C3850-NM-4-1G on Catalyst 3850 edge switches to isolate high-density IoT sensors from corporate IT traffic via four independent 1 Gigabit fiber connections to the core. This segmented topology enforces TrustSec policies at the edge, delivers predictable performance for real-time telemetry and strengthens security posture against lateral threats.
Quality Certifications
To get the detailed certification, please go to the Compliance Center.
Product Comparison Table
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|---|---|---|---|---|
| Compatibility | Cisco | Cisco | Cisco Catalyst 3850 Series | Cisco Catalyst 3850 Series Switches |
| Connector Type | SFP+ | SFP+ | SFP+ | RJ-45 |
| Data Rate | 10Gbps | 10Gbps | 10Gbps | 1Gbps |
| Depth | N/A | N/A | N/A | N/A |
| Expansion Slots | N/A | N/A | NIM | N/A |
| Form Factor | Modular | Modular | Modular | Modular |
| Height | N/A | N/A | N/A | N/A |
| Input Voltage | 3.3V | N/A | N/A | N/A |
| Interface Ports | SFP+ | SFP+ | SFP+ | Ethernet |
| Max Speed | 10Gbps | 10Gbps | 10Gbps | 1Gbps |
| Module Type | SFP+ | Network Module | Ethernet | Network Module |
| Operating Temperature | 0 to 50°C | 0 to 50°C | 0 to 50°C | 0 to 45°C |
| Power Consumption | N/A | N/A | N/A | N/A |
| Product Name | Cisco Catalyst 3850 Network Module 8x10G (C3850-NM-8-10G) | Cisco C3850-NM-4-10G | Cisco Catalyst 3850 C3850-NM-2-10G Network Module | Cisco Catalyst 3850 4-port 1-Gigabit Ethernet Network Module |
| Product Type | Network Module / Network Card | Network Module / Network Card | Network Module | Network Module |
| Storage Temperature | -40 to 70°C | -40 to 70°C | N/A | N/A |
| Supported Features | Auto-negotiation, Jumbo Frames, QoS | Auto-negotiation / Jumbo Frames / QoS | Auto-negotiation, Jumbo Frames, QoS | Auto-negotiation, Jumbo Frames |
| Supported Protocols | TCP/IP | TCP/IP | TCP/IP | TCP/IP |
| Weight | N/A | N/A | N/A | N/A |
| Width | N/A | N/A | N/A | N/A |
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Questions & Answers
Q
What is the Cisco Catalyst 3850 4x1GE Network Module (SKU: C3850-NM-4-1G)?
A
The Cisco Catalyst 3850 4x1GE Network Module (SKU: C3850-NM-4-1G) is a high-performance uplink module that adds four 1 Gigabit Ethernet SFP ports to Catalyst 3850 Series switches.
Q
Which Catalyst 3850 switches support the C3850-NM-4-1G module?
A
The C3850-NM-4-1G module is supported in all Cisco Catalyst 3850 24-port and 48-port fixed-configuration switches with modular uplink bays.
Q
How many Ethernet ports does the Catalyst 3850 4x1GE Network Module provide?
A
The Catalyst 3850 4x1GE Network Module provides four 1 Gigabit Ethernet SFP uplink ports for fiber or copper connectivity.
Q
Which SFP transceivers are compatible with the C3850-NM-4-1G module?
A
The module is compatible with Cisco SFP transceivers such as GLC-SX-MMD, GLC-LH-SMD, GLC-TE, and third-party MSA-compliant SFPs.
Q
Can I stack Catalyst 3850 switches when the 4x1GE module is installed?
A
Yes, the C3850-NM-4-1G module does not affect StackWise-480 functionality; you can stack up to nine Catalyst 3850 switches.
Q
What is the maximum forwarding capacity of the 4x1GE network module?
A
The module delivers line-rate forwarding of up to 4 Gbps aggregate across all four 1 Gigabit SFP ports.
Q
Does the Catalyst 3850 4x1GE module support PoE or PoE+?
A
No, the C3850-NM-4-1G is an uplink-only network module and does not provide Power over Ethernet (PoE) or PoE+ on its ports.
Q
How do I install the Cisco C3850-NM-4-1G module into my switch?
A
To install, power off the switch (optional for hot-swap), insert the module into an uplink bay until it clicks, secure the captive screw, then power on and verify with the show module command.
Q
Which Cisco IOS XE software version is required for the 4x1GE network module?
A
The C3850-NM-4-1G module requires Cisco IOS XE 16.3.x or later to ensure full feature support and stability.
Q
Is hot-swapping supported for the Catalyst 3850 4x1GE module?
A
Yes, the module supports hot-swappable insertion and removal without disrupting data traffic on other ports.
Q
What warranty and support options are available for the C3850-NM-4-1G?
A
Cisco offers a limited lifetime hardware warranty and optional SMARTnet Service for software updates, 24/7 technical support, and hardware replacement.
Q
How can I troubleshoot link issues on the 4x1GE network module ports?
A
Use the show interfaces status and show logging commands to verify SFP status, check compatibility, reseat modules, and upgrade to the latest IOS XE release.
Q
What are the environmental specifications of the Catalyst 3850 4x1GE module?
A
Operating temperature ranges from 0 °C to 45 °C, relative humidity from 10 % to 90 % non-condensing, and altitude up to 3,000 m.
Q
Does the C3850-NM-4-1G module support both Layer 2 and Layer 3 features?
A
Yes, the module transparently forwards Layer 2 and Layer 3 traffic, leveraging the Catalyst 3850 switch’s full feature set.
Q
Can I mix the 4x1GE module with other uplink modules in the same switch?
A
Yes, you can mix C3850-NM-4-1G with other Cisco uplink modules as long as the total slot configuration is supported by your switch model.
Q
What is the typical power consumption of the C3850-NM-4-1G network module?
A
The typical power consumption of the Catalyst 3850 4x1GE Network Module is approximately 3 watts under normal operating conditions.
