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Delock Products 87741 Delock USB 2.0 to serial RS-232/422/485 adapter with 15 kV ESD protection and a compact serial connector housing
StarTech.com 3ft USB to Serial Cable, USB to Serial Adapter, RS232 DB9 COM Port to USB, Prolific - 1P3FP-USB-SERIAL - USB Adapters - CDW.com
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Amazon.com: waveshare USB to RS232/485/TTL(UART) Industrial Isolated Converter with Original FT232RL Inside and Power Isolation ADI Magnetical Isolation TVS Diode Protection Circuit Aluminium Alloy Enclosure : Electronics
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