Buy Wholesale China Rs232 To Rs485 Serial Passive Converter Db9 Female Data Transmitter Screw Terminal Connector & Rs232 To Rs485 Converter at USD 7.5 | Global Sources
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L-com 2 Wire RS485 to USB Converter, DB9 Female Connector - LC-USB-485
USB to RS-485 DB9 1-Port Serial Interface Adapter - Sealevel
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DB9 Female to RJ45 Adapter, Preconfigured for 7107 (RS-485) - Sealevel
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Runze Peristaltic Pump Accessories dB15-RS485 Communication Cable Adapter - China Pump Accessories, Communication Cables | Made-in-China.com
EZSync FTDI Chip USB to RS485/RS422 Serial Adapter Cable with RX/TX LEDs, 9 Pin DB9 connector with Terminal Extension Board ,Windows 10 Supported, EZSync201 – Serial Connections Made Easy
RS422 RS485 USB Serial Cable Adapter - Serial Cards & Adapters | StarTech.com