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Cisco IEM-3300-8T 8-Port Gigabit RJ-45 Copper Expansion Module for IE3300 Switch

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Cisco IE 3000 8-Port 100Mb/s 2xGigabit Industrial Switch P/N: IE-3000-8TC V03

IE-1000-8P2S-LM Cisco Industrial Ethernet Managed Switch

Cisco IEM-3400-8S Catalyst Expansion Module