Opto-Isolated USB to RS232 / RS485 / RS422 Converter (Industrial / Por – CommFront
Multi-Port Industrial USB to Serial Converter with Isolation
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Waveshare USB to RS232 / RS485 / TTL Industrial Isolated Converter with Original FT232RL Embedded Protection Circuits and Aluminium Alloy Enclosure for Industrial Control Equipments
RS232, RS485, RS422, USB and other Serial converters
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USB to RS485 Isolated adapter / converter
Multi USB/RS232/RS485/TTL Converter
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USB to RS485-RS422 converter with FTDI Chip and USB Cable