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