'4 X 1G ETHERNET UPLINK PORTS'}
Cisco C3850-NM-4-1G New Module WhaleyComm
Cisco

Cisco C3850-NM-4-1G Catalyst 3850 4-Port 1G Network Module

MPN: C3850-NM-4-1G
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$39.95
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Every WhaleyComm unit is professionally tested, reset to factory defaults, and certified by our in-house engineers — the same standard trusted by 5,000+ organisations across 25 years. Not a refurb marketplace. A certified lifecycle partner.

Tested to factory specification. Backed by 25 years of enterprise trust.

The Cisco C3850-NM-4-1G is a genuine Cisco network expansion module designed for the Catalyst 3850 Series switches. This module adds four 1 Gigabit Ethernet uplink ports, providing flexible and scalable network connectivity for enterprise environments. Whether you're expanding an existing Catalyst 3850 deployment or building a new high-availability network stack, this module delivers reliable, high-performance connectivity straight from the industry leader in networking.

Product Details

  • Manufacturer Part Number (MPN): C3850-NM-4-1G
  • Vendor / Brand: Cisco
  • Product Type: Network Expansion Module
  • Compatible Platform: Cisco Catalyst 3850 Series Switches
  • Ports: 4 x 1G Ethernet Uplink Ports
  • Condition: New

Compatible With

  • Cisco Catalyst 3850-24T
  • Cisco Catalyst 3850-48T
  • Cisco Catalyst 3850-24P
  • Cisco Catalyst 3850-48P
  • Cisco Catalyst 3850-48F
  • Other Catalyst 3850 Series models supporting NM slot

Order your Cisco C3850-NM-4-1G today from WhaleyComm and experience the difference that enterprise-grade quality, expert testing, and unbeatable warranty coverage can make for your network infrastructure.

Technical Specifications
{'Manufacturer Part Number'
'C3850-NM-4-1G', 'Brand': 'Cisco', 'Product Type': 'Network Expansion Module', 'Condition': 'New', 'Manufacturer Part Number (MPN)': 'C3850-NM-4-1G', 'Vendor / Brand': 'Cisco', 'Compatible Platform': 'Cisco Catalyst 3850 Series Switches', 'Ports': '4 x 1G Ethernet Uplink Ports'}
Ideal Use Cases
Platform Port Expansion
Interface modules expand port capacity and connectivity options of modular chassis, enabling additional interfaces without replacing the host platform.
Technology Migration
Enables existing platforms to support newer interface speeds as part of incremental upgrades, extending the investment lifecycle of the host chassis.
What's Included
✔ Cisco C3850-NM-4-1G New Module (1x)
✔ WhaleyComm ISO 9001-certified inspection and testing certificate
✔ WhaleyComm Lifetime Warranty
Lifetime Warranty — No Time Limits. No Questions.
Every WhaleyComm unit ships with a Lifetime Warranty. If it fails under normal operating conditions at any point, we replace it. No time limits, no expiration, no hidden conditions. Backed by 25 years and 5,000+ satisfied customers.
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Compatibility Details
Review supported optics, cables, software, management protocols, and environment-specific compatibility guidance.
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Platform Compatibility

  • Platform: Cisco ISR or ASR Series — verify chassis and slot compatibility for modular components
  • Software: Cisco IOS XE or IOS XR — verify supported software release
  • Management: Cisco DNA Center, Cisco vManage, Cisco Prime Infrastructure
  • Note: Advanced features may require additional licensing. Contact WhaleyComm at +1 214 607-4800.
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Shipping & Returns
Clear fulfilment, tracking, return, warranty, and support information for enterprise hardware orders.
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Shipping
Orders ship within 1-2 business days from our facility in Texas. Overnight and expedited shipping available at checkout.
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Returns
Contact our support team for any DOA or warranty issues. Every WhaleyComm unit is covered by a Lifetime Warranty — we make it right, fast.
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Contact
+1 214 607-4800 | Mon-Fri 8am-6pm CST
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Frequently Asked Questions
Product-specific answers about compatibility, testing, warranty, fulfilment, and purchase confidence.
This unit is sold as New and has never been deployed. It ships in original or equivalent packaging with a WhaleyComm Lifetime Warranty.
Yes. Every WhaleyComm unit ships with a Lifetime Warranty — no time limits, no questions asked. If your Cisco C3850-NM-4-1G fails under normal operating conditions at any point, we replace it at no cost.
Every unit WhaleyComm ships undergoes an ISO 9001-certified testing process: full power-on diagnostics, port-by-port functionality testing, firmware verification, factory reset, and final inspection. Backed by 25 years of experience and 5,000+ enterprise customers.
Cisco C3850-NM-4-1G Catalyst 3850 4-Port 1G Network Module
$39.95
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