Amazon.com: PLC Cable for Siemens S7 200/300/400 6ES7 972-0CB20-0XA0 USB-MPI+ PC USB-PPI : Electronics
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 - Walmart.com