![Amazon.com: TRENDnet USB to Serial 9-Pin Converter Cable, Connect a RS-232 Serial Device to a USB 2.0 Port, Supports Windows & Mac, USB 1.1, USB 2.0, USB 3.0, 21 Inch Cable Length, Amazon.com: TRENDnet USB to Serial 9-Pin Converter Cable, Connect a RS-232 Serial Device to a USB 2.0 Port, Supports Windows & Mac, USB 1.1, USB 2.0, USB 3.0, 21 Inch Cable Length,](https://m.media-amazon.com/images/I/71RvYgnQZ3L.jpg)
Amazon.com: TRENDnet USB to Serial 9-Pin Converter Cable, Connect a RS-232 Serial Device to a USB 2.0 Port, Supports Windows & Mac, USB 1.1, USB 2.0, USB 3.0, 21 Inch Cable Length,
![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: SystemBase - Made In Korea - USB to 1port RS232 USB Serial Cable (USB to RS232 Adapter), USB 2.0, FTDI Chipset, DB9 Male, Cable 1.96ft(0.6m) Latching USB Connector Applied, for Windows Amazon.com: SystemBase - Made In Korea - USB to 1port RS232 USB Serial Cable (USB to RS232 Adapter), USB 2.0, FTDI Chipset, DB9 Male, Cable 1.96ft(0.6m) Latching USB Connector Applied, for Windows](https://m.media-amazon.com/images/I/714X3rftkIS.jpg)
Amazon.com: SystemBase - Made In Korea - USB to 1port RS232 USB Serial Cable (USB to RS232 Adapter), USB 2.0, FTDI Chipset, DB9 Male, Cable 1.96ft(0.6m) Latching USB Connector Applied, for Windows
![Industrial USB/RS232 USB/Serial PLC Programming W7 XP RS232 - PLCCable.com - Automation Supplies and PLC Tools Industrial USB/RS232 USB/Serial PLC Programming W7 XP RS232 - PLCCable.com - Automation Supplies and PLC Tools](https://cdn11.bigcommerce.com/s-djpfj/images/stencil/1280x1280/products/749/4322/plc-cables-inc-industrial-usbrs232-usbserial-plc-programming-w7-xp-rs232__37456.1664534564.jpg?c=2)
Industrial USB/RS232 USB/Serial PLC Programming W7 XP RS232 - PLCCable.com - Automation Supplies and PLC Tools
![Amazon.com: Manhattan USB to Serial Converter Connects One Serial Device to A USB Port (205146) : Electronics Amazon.com: Manhattan USB to Serial Converter Connects One Serial Device to A USB Port (205146) : Electronics](https://m.media-amazon.com/images/I/51Zpf-g8CJL.jpg)
Amazon.com: Manhattan USB to Serial Converter Connects One Serial Device to A USB Port (205146) : Electronics
![3-in-1 Ch340 Usb To Usb-ttl/rs485/232 Serial Port Converter Module Multi-function Communication Conversion Adapter Board - Integrated Circuits - AliExpress 3-in-1 Ch340 Usb To Usb-ttl/rs485/232 Serial Port Converter Module Multi-function Communication Conversion Adapter Board - Integrated Circuits - AliExpress](https://ae01.alicdn.com/kf/H252262c95f3340b3998596d1d8ffe7ebS/3-in-1-CH340-USB-to-USB-TTL-RS485-232-Serial-Port-Converter-Module-Multi-Function.jpg_Q90.jpg_.webp)