5ft USB to DB9 Male Serial RS232 Adapter Cable | C2G
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USB-COM-U13 USB-Serial Cable 13-Inch ($12.95) : Saelig Online Store
Amazon.com: Maikrt USB to Serial RS232 Adapter Compatible with Windows, Mac & Linux DB9(9-pin) Serial Adapter Cable - PL2303 Chipset RS232 Serial Converter : Electronics
954 - Adafruit - USB to TTL Serial Cable, 36", For Microcontroller/Raspberry Pi/WiFi Router
SABRENT USB to Serial Adapter Cable | Bren Inc.
USB to TTL Serial Cable - Debug / Console Cable for Raspberry Pi : ID 954 : $9.95 : Adafruit Industries, Unique & fun DIY electronics and kits
Buy RS232 USB to RS232C Serial Port Adapter - CNC Specialty Store
Startech.com Usb To Serial Adapter - Prolific Pl-2303 - Com Port Retention - Usb To Rs232 Adapter Cable - Usb Serial - Db-9 Male : Target
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Plugable USB to RS-232 DB9 Serial Adapter (Prolific PL2303HX Chipset) – Plugable Technologies
FTDI USB-to-Single Port Serial Adapter (USB1PFTDI) - Astro-Physics