![StarTech.com USB to Serial Adapter - Prolific PL-2303 - 3 ft / 1m - DB9 (9-pin) - USB to RS232 Adapter Cable - USB Serial - Add an RS232 serial port to StarTech.com USB to Serial Adapter - Prolific PL-2303 - 3 ft / 1m - DB9 (9-pin) - USB to RS232 Adapter Cable - USB Serial - Add an RS232 serial port to](https://content.etilize.com/Maximum/1019462158.jpg)
StarTech.com USB to Serial Adapter - Prolific PL-2303 - 3 ft / 1m - DB9 (9-pin) - USB to RS232 Adapter Cable - USB Serial - Add an RS232 serial port to
OAKTON, For Use With OAKTON pH meters with RS-232 connections, RS-232 to USB adapter - 10A302|WD-22050-58 - Grainger
![CableCreation USB to RS232 Serial Adapter (FTDI Chip), 6.6 Feet USB to DB9 Female Converter Cable for Windows 10, 8.1, 8, 7, Vista, XP, Linux and Mac OS X, macOS, 2 Meters/Black CableCreation USB to RS232 Serial Adapter (FTDI Chip), 6.6 Feet USB to DB9 Female Converter Cable for Windows 10, 8.1, 8, 7, Vista, XP, Linux and Mac OS X, macOS, 2 Meters/Black](https://m.media-amazon.com/images/I/61-+Vfb45gL.jpg)
CableCreation USB to RS232 Serial Adapter (FTDI Chip), 6.6 Feet USB to DB9 Female Converter Cable for Windows 10, 8.1, 8, 7, Vista, XP, Linux and Mac OS X, macOS, 2 Meters/Black
![StarTech.com USB C to Serial Adapter Cable with COM Port Retention, 16" (40cm) USB Type C to RS232 (DB9) Serial COM Port Converter Cable, For PLCs, Scanners, Printers, Windows/macOS/Linux - Up to StarTech.com USB C to Serial Adapter Cable with COM Port Retention, 16" (40cm) USB Type C to RS232 (DB9) Serial COM Port Converter Cable, For PLCs, Scanners, Printers, Windows/macOS/Linux - Up to](https://cdn.cs.1worldsync.com/95/4c/954c638f-48bb-44d8-b7f0-b5d1911ff0c8.jpg)
StarTech.com USB C to Serial Adapter Cable with COM Port Retention, 16" (40cm) USB Type C to RS232 (DB9) Serial COM Port Converter Cable, For PLCs, Scanners, Printers, Windows/macOS/Linux - Up to
![Amazon.com: Plugable USB to Serial Adapter Compatible with Windows, Mac, Linux (RS-232DB9 Female Connector, Prolific PL2303HX Rev. D Chipset) : Electronics Amazon.com: Plugable USB to Serial Adapter Compatible with Windows, Mac, Linux (RS-232DB9 Female Connector, Prolific PL2303HX Rev. D Chipset) : Electronics](https://m.media-amazon.com/images/I/71H3zuWZeLL.jpg)