Siemens S7 200 Programming Cable with 9 Pin RS232 PPI Serial Port - China Plc Fitting and 9 Pin
USB-MPI Programming Cable for Siemens S7-200 300 400 Series 6ES7 972-0CB20-0XA0 PLC 0CB20 USB MPI/PPI/DP/PROFIBUS USB MPI PC-MPI Adapter: Amazon.com: Tools & Home Improvement