Cisco
Cisco C3850-NM-4-10G Catalyst 3850 4-Port 10G SFP+ Network Module
PO and Net 30 available for schools, government, hospitals, and law firms.
Description
Description
Cisco C3850-NM-4-10G — 4-Port 10GE SFP+ Uplink Module for Catalyst 3850 Series
Upgrade your Cisco Catalyst 3850 switch with the C3850-NM-4-10G network module. This hot-swappable uplink module delivers four 10 Gigabit Ethernet SFP+ ports — backward compatible with 1G SFP transceivers — for up to 40 Gbps of aggregate uplink bandwidth. Fully refurbished, rigorously tested, and backed by Reef Telecom's industry-leading 10-year warranty.
Key Specifications
- Part Number: C3850-NM-4-10G
- Uplink Ports: 4x 10 Gigabit Ethernet SFP+ (also supports 1G SFP)
- Aggregate Throughput: Up to 40 Gbps
- Form Factor: Plug-in module (hot-swappable)
- Condition: Refurbished — fully tested and restored to factory specs
- Warranty: 10-year Reef Telecom warranty
Why Buy from Reef Telecom?
- Every unit professionally tested and inspected
- 10-year warranty — the longest in the industry
- Free shipping on orders over $300
- Trusted B2B telecom equipment reseller
Compatibility
The C3850-NM-4-10G is compatible with 48-port Gigabit Ethernet Catalyst 3850 models and 12-port or higher 10GE models, including WS-C3850-48T, WS-C3850-48P, WS-C3850-48F, WS-C3850-48U, WS-C3850-24XU, WS-C3850-12X48U, WS-C3850-12XS, and WS-C3850-24XS. Ideal for enterprise campus distribution, data center uplinks, and high-bandwidth aggregation deployments.
Specs & Details
Specs & Details
Shipping & Warranty
Shipping & Warranty
Free ground shipping on orders over $300. Same-day shipping on orders placed before 4PM EST.
All products include our industry-leading 10 Year Warranty backed by Reef Telecom.

We clean up after ourselves.
Ecommerce deliveries have a carbon footprint. That's why we support verified projects that remove carbon from the air.
Every delivery’s carbon footprint is calculated based on weight, shipping method, and distance traveled. We neutralize these emissions by purchasing verified carbon removal credits from groundbreaking projects.
With your purchase, you’ll join a community of proactive merchants and customers dedicated to a sustainable future. Together, we've removed emissions for over 81 million deliveries and removed over 56 thousand tonnes of carbon.
We work with a network of pioneering carbon removal companies that have been vetted by the commerce platform Shopify.
Reef Telecom Proudly Supports
-
Ocearch
2026 Monthly Shark Hero -
Coral Restoration Foundation
2025 Staghorn Donor -
Ocean Conservancy
2025 Donor
Smart IT. Clean Oceans. Boundless Possibilities.
Our goal is providing the highest quality refurbished equipment to promote environmentally-conscious equipment usage through it's lifecycle.