Cisco C3KX-NM-1G 4-Port Gigabit Ethernet SFP Network Module

Expand your Cisco Catalyst 3750-X or 3560-X switch with this fully refurbished and tested C3KX-NM-1G network module. Add four 1G SFP uplink ports for flexible fiber or copper connectivity — ideal for campus distribution, data center edge, and enterprise uplink deployments.

Key Specifications

• Part Number: C3KX-NM-1G
• Ports: 4 x 1G SFP (Gigabit Ethernet)
• Device Type: Plug-in Expansion Module
• Data Link Protocol: Gigabit Ethernet (1000Base-X)
• Compatibility: Cisco Catalyst 3750-X and 3560-X Series Switches (3560X-24, 3560X-48, 3750X-12, 3750X-24, 3750X-48)
• SFP Support: Any standard Cisco 1G SFP (1000BASE-SX, 1000BASE-LX/LH, 1000BASE-T)
• Hot-Swappable: Yes — install or remove without powering down
• Features: QoS, VLAN support, PAgP, LACP, auto-negotiation

Why Buy from Reef Telecom?

• ✅ Industry-leading 10-year warranty on all refurbished equipment
• ✅ Free shipping on orders over $300
• ✅ Every unit professionally tested and inspected before shipment
• ✅ Trusted B2B telecom equipment supplier

Whether you're adding fiber uplinks to your access layer or expanding your network backbone, the Cisco C3KX-NM-1G delivers reliable Gigabit connectivity with seamless integration into your existing Catalyst 3K-X infrastructure.

Condition

Certified Refurbished

Warranty

10-Year Reef Telecom Warranty

Manufacturer Part Number

C3KX-NM-1G

Reef SKU

C3KX-NM-1G-R

UPC

882658330452

Brand

Cisco

Free ground shipping on orders over $300 (contiguous US). Same-day shipping on orders placed before 4 PM EST.

All products include our industry-leading 10 Year Warranty backed by Reef Telecom.