StarTech.com
StarTech.com 3m USB to Serial Null Modem Adapter, RS232, FTDI
The StarTech.com 3m USB to Serial Null Modem Adapter provides a reliable and cost-effective way to connect serial devices to your computer via USB. This compact adapter features a USB Type-A male connector at one end and a DB-9 male connector on the other, allowing you to easily connect a variety of serial devices such as modems, dial-up accessories, or legacy terminals.
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Updated on May 18, 2026
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