IEM-3300-8T - Cisco IE3300 Rugged 8 Port GE Copper Expansion Module

Cisco IEM-3300-8T — Industrial Ethernet Modular 3300 Series 8-Port Gigabit Ethernet Switch

What it is

IEM-3300-8T is a Cisco Industrial Ethernet Modular (IEM) 3300 Series ruggedized managed switch with a fixed 8 × Gigabit Ethernet copper port base and additional modular slots for expansion (uplinks, fiber, PoE, radios, etc.). It’s built for industrial/OT environments — places like factories, utilities, transportation, and harsh outdoor enclosures.

Why buyers pick IEM-3300-8T (plain English)

8 Gigabit copper access ports: Provides reliable wired connectivity for industrial devices like PLCs, controllers, sensors, and IP endpoints.

Modular uplink/expansion slots: Unlike fixed switches, the IEM series lets you add fiber uplinks, PoE modules, wireless radios, or other interface cards to match site requirements now and in the future.

Industrial-grade ruggedness: Engineered to handle heat, vibration, electrical noise, and environmental stresses typical of edge deployments.

Cisco managed feature set: Supports enterprise-class VLANs, QoS, redundancy protocols, security features, and Cisco CLI for consistent operations across IT and OT teams.

60-second spec box (IEM-3300-8T)

Access / downlink ports

• 8 × 10/100/1000Base-T RJ-45 copper

Expansion / modular slots

• Support for Cisco IEM modular uplink and expansion cards

• Modules can include fiber SFP, PoE, wireless, or specialized interfaces (module dependent)

Switching / features

• Managed Layer 2 switching

• VLANs, QoS, STP/RSTP/MSTP

• Security ACLs, DHCP options

Management

• Cisco CLI

• SNMP / Web UI (platform dependent)

Ruggedization

• Industrial temperature tolerance

• Surge / ESD protection

• DIN-rail or wall-mount capable

Where it fits (and when to choose something else)

Perfect for:

• Industrial access networks needing modular flexibility

• Sites that may evolve (fiber uplinks, PoE, wireless) without replacing the entire switch

• Harsh environments where reliability under stress matters

Choose something else if:

• You don’t need modular upgrades → fixed industrial switches (IE-3100 series) may be simpler/cheaper

• You need 10Gb uplinks → look at modular uplink cards with higher-speed optics

TL;DR

IEM-3300-8T is a modular Cisco industrial switch with 8× Gigabit copper ports and expansion slots — built for flexible, rugged edge networking where you might add fiber, PoE, or radio modules as needs grow.