![Amazon.com: Tripp Lite Keyspan High-Speed USB to Serial Adapter, PC & Mac, USB-A to DB9 RS232 Male, 3 Foot / 0.91 Meter Cable, 3-Year Warranty (USA-19HS) : Electronics Amazon.com: Tripp Lite Keyspan High-Speed USB to Serial Adapter, PC & Mac, USB-A to DB9 RS232 Male, 3 Foot / 0.91 Meter Cable, 3-Year Warranty (USA-19HS) : Electronics](https://m.media-amazon.com/images/I/71xCsjxGaBL.jpg)
Amazon.com: Tripp Lite Keyspan High-Speed USB to Serial Adapter, PC & Mac, USB-A to DB9 RS232 Male, 3 Foot / 0.91 Meter Cable, 3-Year Warranty (USA-19HS) : Electronics
![How to change the COM port for a USB Serial adapter on Windows 7, 8, 8.1, and 10 - Plugable Knowledge Base How to change the COM port for a USB Serial adapter on Windows 7, 8, 8.1, and 10 - Plugable Knowledge Base](https://media.plugable.com/images/kb/714099/set-com-windows-003-max.png)
How to change the COM port for a USB Serial adapter on Windows 7, 8, 8.1, and 10 - Plugable Knowledge Base
![Insignia™ 1.3' USB-to-RS-232 (DB9) PDA/Serial Adapter Cable, with Prolific Chipset Black NS-PU99501 - Best Buy Insignia™ 1.3' USB-to-RS-232 (DB9) PDA/Serial Adapter Cable, with Prolific Chipset Black NS-PU99501 - Best Buy](https://pisces.bbystatic.com/image2/BestBuy_US/images/products/5883/5883029_sd.jpg;maxHeight=640;maxWidth=550)
Insignia™ 1.3' USB-to-RS-232 (DB9) PDA/Serial Adapter Cable, with Prolific Chipset Black NS-PU99501 - Best Buy
![Amazon.com: CABLEMAX High-Speed USB RS-232 Serial Adapter DB-9 Male FTDI Chipset - Windows 10 : Electronics Amazon.com: CABLEMAX High-Speed USB RS-232 Serial Adapter DB-9 Male FTDI Chipset - Windows 10 : Electronics](https://m.media-amazon.com/images/I/71DuS40XRzL._AC_UF894,1000_QL80_.jpg)
Amazon.com: CABLEMAX High-Speed USB RS-232 Serial Adapter DB-9 Male FTDI Chipset - Windows 10 : Electronics
![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)