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Amazon.com: Waveshare Industrial USB to RS485 Converter with Original FT232RL and SP485EEN Embedded Protection Circuits for Industrial Control Equipments and/or Applications with High Communication Requirement : Electronics
Tripp Lite USB to RS485/RS422 FTDI Serial Adapter Cable with COM Retention ( USB-A to DB9 M/M), 30 in. - USB / serial - U209-30N-IND - USB Adapters - CDW.com
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