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USB to Serial Adapter, BENFEI USB to RS-232 Male (9-pin) DB9 Serial Cable, Prolific Chipset, Windows 10/8.1/8/7, Mac OS X 10.6 and Above, 1.5M - Walmart.com
Keyspan RS232 to USB-A Adapter, DB9, 3-ft Cable | Tripp Lite
IOGEAR - GUC232A - USB to Serial Adapter
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USB to Serial Adapter cable, Windows 10 | U.S. Converters™