The Cisco C3850-NM-4-10G is a high-speed network module designed to enhance the flexibility and uplink capacity of Catalyst 3850 series switches. By adding 4 SFP ports capable of 10 Gigabit Ethernet, this module allows enterprises to scale their network uplinks and interconnect switches with higher bandwidth links while maintaining centralized control and advanced features of the 3850 platform. This line card (network module) is hot-swappable and supports both 10G and 1G SFP modules, giving network engineers flexibility in deployment. It’s supported in 48-port Gigabit Ethernet 3850 switches and in 10G models, enabling redundant uplinks, aggregation, or clustering in large campus networks. With this module installed, your 3850 switch can offload heavy traffic flows onto high-speed links, reducing bottlenecks and improving throughput. It also supports the full feature set of Catalyst switches, including stacking (StackWise), QoS, ACLs, multicast, security features, and more. Key Features & Benefits 4 × 10 Gigabit Ethernet SFP ports (also backward compatible with 1G SFP modules) Hot-swappable insertion (no need to power down chassis) Designed for Catalyst 3850 switches, especially 48-port Gigabit models and 10G variants Enables high-speed uplinks, aggregation between switches, or link redundancy Supports full Cisco feature set: QoS, ACL, multicast, security, stacking interoperability Technical Specifications Specification Detail Model / Part Number C3850-NM-4-10G Interface Type 4 × SFP ports (10G) with backward 1G support Supported Platforms Catalyst 3850 series (48-port Gigabit models or 10G models) Hot-Swappable Yes (supports insertion/removal without powering off) Backward Compatibility Supports 1G SFP modules in the same ports Use Cases High-speed uplinks, switch interconnects, stacking aggregation See all Network Switches Available
