6GK7443-1EX11-0XE0 Communications Processor, CP 443-1, for Connection of SIMATIC S7-400 to Industrial ETHERNET VIA ISO/TCP/IP and UDP 6GK74431EX110XE0: Amazon.com: Industrial & Scientific
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Siemens 6GK7 443-1EX01-0XE0 Simatic Net CP 443-1 Tcp,6GK7443-1EX01-0XE0 | eBay