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Industrial Grade USB-RS485 USB-RS422 USB-RS232 FTDI Chip Isolated Signal Conversion Module USB-232/485/422 Magnetic Isolation
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USB To RS232 Serial Adapter 1.2M USB To Serial Converter DB9 9 Pin Port RS232 Cable for PAD, Serial Modems, Router, GPS, Firmware - Walmart.com
USB-232-K Isolated USB to RS232 Converter ($67.00) : Saelig Online Store
Promag USB232 Converter, USB232: USB to RS232 Converter Promag
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ELK-USB232 USB 2.0 to RS232 converter | eBay
USB TO RS232 RS485 USB Serial Communication module USB-232/485 Signal Converter | eBay
Cable: for Protos X bus couplers, 9.8ft/3m cable length (PN# PX-USB-232) | AutomationDirect
kele.com | Onset Computer Corporation CABLE-USB232 | Tools & Test Equipment | Data Loggers
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Amazon.com: CBL-USB-232: USB to RS232 Converter Cable with Thumscrews, 1.1m long (Prolific PL2303) : Electronics
Industrial Grade USB-RS485 USB-RS422 USB-RS232 FTDI Chip Isolated Signal Conversion Module USB-232/485/422 Magnetic Isolation
