Cisco Catalyst IE3300 16 GE Expansion Module | Industrial Ethernet — IEM-3300-16T=

Expand Cisco IE3300 switching capacity with 16 GE copper ports designed for industrial Ethernet environments. This expansion module adds wired access density without forcing a full platform replacement, making it a practical way to grow connected endpoints while keeping the same operational model. For teams building out plant-floor, utility, transportation, or distributed edge networks, the value is straightforward: more ports, less disruption. The module fits into an IE3300-based architecture and supports the kind of incremental scaling that keeps capital spend aligned with actual port demand. That matters when you are adding controllers, sensors, cameras, access points, or other copper-connected devices and need consistent switching behavior across the site. Cisco positioning also matters here. In industrial networks, the cost of a poor fit is not just hardware spend — it is downtime, rework, and maintenance overhead. This module is intended for environments that need dependable expansion within an established Cisco switching footprint, with the port count to support denser edge aggregation and the discipline to keep the network simple to operate. Ideal For Adding sensor and controller connections on a plant floor Expanding port capacity in a utility substation network Increasing wired endpoints in a transportation edge cabinet Growing access density in a distributed industrial switch stack Why This Product 1 Adds 16 copper ports without replacing the base switch 2 Fits industrial edge deployments where port growth is incremental 3 Uses Gigabit Ethernet for standard wired endpoint connectivity 4 Keeps the network within the Cisco IE3300 platform