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PC Adapter USB for Siemens SIMATIC S7 200/300/400 PLC, 6ES7972-0CB20-0XA0 Equivalent, EZSync503 – Serial Connections Made Easy
Amazon.com: 6GK 1571-0BA00-0AA0 PC USB A2 Cable for Siemens S7-300 GK1571-0BA00-0AA0 MPI+ PC-Adapter-USB : Electronics
PwrON Compatible 6V - 6.5V AC / DC Adapter Replacement for Siemens Gigaset S680 S685 S680IP S685IP S645 S670 - Walmart.com
EHS Adapter Cable for Siemens Phones | Business Telecom Products