3ft USB to Serial Cable/RS232 Adapter - Serial Cards & Adapters | StarTech.com
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pro snake USB-RS232 Adapter 2.0 – Thomann United States
USB to RS232 DB9 Serial Adapter Cable - Serial Cards & Adapters | StarTech.com
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PRO Single Port USB to Serial Adapter with Activity LED 3ft.
StarTech.com USB to Serial Adapter - 3 ft / 1m - with DB9 to DB25 Pin Adapter - Prolific PL-2303 - USB to RS232 Adapter Cable - Add an RS232 serial port
CHIPI-X USB to RS-232 Serial Adapter - The Very BEST! - store.ncd.io
StarTech USB to RS232 Serial DB9 Adapter Cable ICUSB232PRO B&H
C2G 1.5ft USB to Serial Cable - USB to DB9 Serial RS232 Cable - M/M - 26886 - USB Adapters - CDW.com
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Amazon.com: Plugable USB to Serial Adapter Compatible with Windows, Mac, Linux (RS-232DB9 DTE Male Connector, Prolific PL2303HX Rev. D Chipset) : Electronics