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USB-MPI DP PPI for Siemens S7-200/300/400 PLC Programming Cable – PLC Cable
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Siemens S7 200 USB Isolated PPI PLC communication cable - PLCCable.com - Automation Supplies and PLC Tools
Amazon.com: DCYNXC Compatible with Siemens PLC Programming Cable S7-200/300/400 Data Download Line 6ES7972-0CB20-0XA0,USB/MPI PC Adapter USB Cable for Siemen S7-200/300/400 PLC MPI/DP/PPI Programming Cable 16ft : Electronics