![16 Port USB to Serial RS232 Adapter Hub - Serial Cards & Adapters | Add-on Cards & Peripherals | StarTech.com 16 Port USB to Serial RS232 Adapter Hub - Serial Cards & Adapters | Add-on Cards & Peripherals | StarTech.com](https://media.startech.com/cms/products/gallery_large/icusb23216fd.main.jpg)
16 Port USB to Serial RS232 Adapter Hub - Serial Cards & Adapters | Add-on Cards & Peripherals | StarTech.com
![24in Int USB Header to Serial Adapter - Serial Cards & Adapters | Add-on Cards & Peripherals | StarTech.com 24in Int USB Header to Serial Adapter - Serial Cards & Adapters | Add-on Cards & Peripherals | StarTech.com](https://media.startech.com/cms/products/gallery_large/icusb232int2.main.jpg)
24in Int USB Header to Serial Adapter - Serial Cards & Adapters | Add-on Cards & Peripherals | StarTech.com
![Amazon.com: StarTech.com 4 Port USB to Serial RS232 Adapter - DB9M - RS232 Extension - Serial to USB (ICUSB2324) : Electronics Amazon.com: StarTech.com 4 Port USB to Serial RS232 Adapter - DB9M - RS232 Extension - Serial to USB (ICUSB2324) : Electronics](https://m.media-amazon.com/images/I/81VKC2HuBEL.jpg)
Amazon.com: StarTech.com 4 Port USB to Serial RS232 Adapter - DB9M - RS232 Extension - Serial to USB (ICUSB2324) : Electronics
![Amazon.com: Industrial Grade Isolated USB Converter, USB TO RS232/485/TTL Converter CH343G Chip, Multi-Protocol/Multi-Type Conversion Multiple Protection, Support Mac, Linux, Android, Windows 11/10/8.1/8/7 : Electronics Amazon.com: Industrial Grade Isolated USB Converter, USB TO RS232/485/TTL Converter CH343G Chip, Multi-Protocol/Multi-Type Conversion Multiple Protection, Support Mac, Linux, Android, Windows 11/10/8.1/8/7 : Electronics](https://m.media-amazon.com/images/I/71kDpzeFRlL._AC_UF894,1000_QL80_.jpg)
Amazon.com: Industrial Grade Isolated USB Converter, USB TO RS232/485/TTL Converter CH343G Chip, Multi-Protocol/Multi-Type Conversion Multiple Protection, Support Mac, Linux, Android, Windows 11/10/8.1/8/7 : Electronics
![Amazon.com: TODOELEC USB to Serial Adapter Cable Kit with FIDI FT232RL Chip, USB to RS232 Convertor, Multiple Cable Lengths & Connectors, USB Type-C/A Ports, DB9 Female/Male Port, Total 4.5M/15FT/ Cable Length : Amazon.com: TODOELEC USB to Serial Adapter Cable Kit with FIDI FT232RL Chip, USB to RS232 Convertor, Multiple Cable Lengths & Connectors, USB Type-C/A Ports, DB9 Female/Male Port, Total 4.5M/15FT/ Cable Length :](https://m.media-amazon.com/images/I/71OhuJi-E1L.jpg)
Amazon.com: TODOELEC USB to Serial Adapter Cable Kit with FIDI FT232RL Chip, USB to RS232 Convertor, Multiple Cable Lengths & Connectors, USB Type-C/A Ports, DB9 Female/Male Port, Total 4.5M/15FT/ Cable Length :
![Amazon.com: DTECH USB to Serial Adapter DB25 DB9 RS232 to USB Cable 4 Feet with FTDI Chip Supports Windows 11 10 8 7 and Mac : Electronics Amazon.com: DTECH USB to Serial Adapter DB25 DB9 RS232 to USB Cable 4 Feet with FTDI Chip Supports Windows 11 10 8 7 and Mac : Electronics](https://m.media-amazon.com/images/I/61OwY3x8mjL._AC_UF894,1000_QL80_.jpg)
Amazon.com: DTECH USB to Serial Adapter DB25 DB9 RS232 to USB Cable 4 Feet with FTDI Chip Supports Windows 11 10 8 7 and Mac : Electronics
![2 Port USB to RS232 Serial Adapter Cable - Serial Cards & Adapters | Add-on Cards & Peripherals | StarTech.com 2 Port USB to RS232 Serial Adapter Cable - Serial Cards & Adapters | Add-on Cards & Peripherals | StarTech.com](https://media.startech.com/cms/products/gallery_large/icusb232c2.main.jpg)
2 Port USB to RS232 Serial Adapter Cable - Serial Cards & Adapters | Add-on Cards & Peripherals | StarTech.com
![8 Port USB to DB9 RS232 Serial Adapter - Serial Cards & Adapters | Add-on Cards & Peripherals | StarTech.com 8 Port USB to DB9 RS232 Serial Adapter - Serial Cards & Adapters | Add-on Cards & Peripherals | StarTech.com](https://media.startech.com/cms/products/gallery_large/icusb2328i.main.jpg)
8 Port USB to DB9 RS232 Serial Adapter - Serial Cards & Adapters | Add-on Cards & Peripherals | StarTech.com
![USB to RS232/485 Industrial Grade Isolated Converter, Onboard Original FT232RNL Chip, Multiple Protection, Wall-mount and Rail-Mount Support | USB TO RS232/485 (B) USB to RS232/485 Industrial Grade Isolated Converter, Onboard Original FT232RNL Chip, Multiple Protection, Wall-mount and Rail-Mount Support | USB TO RS232/485 (B)](https://www.waveshare.com/img/devkit/accBoard/USB-TO-RS232-485-B/USB-TO-RS232-485-B-details-1.jpg)
USB to RS232/485 Industrial Grade Isolated Converter, Onboard Original FT232RNL Chip, Multiple Protection, Wall-mount and Rail-Mount Support | USB TO RS232/485 (B)
![USB TO RS232/485/TTL (B) Interface Converter, Industrial Isolation,Multiple Devices Applicable,Multi-OS Compatible - AliExpress USB TO RS232/485/TTL (B) Interface Converter, Industrial Isolation,Multiple Devices Applicable,Multi-OS Compatible - AliExpress](https://ae01.alicdn.com/kf/Sdf35cb200d624da7856491e6bb7c1d04i.jpg_640x640Q90.jpg_.webp)
USB TO RS232/485/TTL (B) Interface Converter, Industrial Isolation,Multiple Devices Applicable,Multi-OS Compatible - AliExpress
![Amazon.com: StarTech.com 4 Port USB to Serial RS232 Adapter - DB9M - RS232 Extension - Serial to USB (ICUSB2324) : Electronics Amazon.com: StarTech.com 4 Port USB to Serial RS232 Adapter - DB9M - RS232 Extension - Serial to USB (ICUSB2324) : Electronics](https://m.media-amazon.com/images/I/81VKC2HuBEL._AC_UF894,1000_QL80_.jpg)
Amazon.com: StarTech.com 4 Port USB to Serial RS232 Adapter - DB9M - RS232 Extension - Serial to USB (ICUSB2324) : Electronics
![USB to RS232 serial port cable one drag four 4 * rs232COM multiple serial port adapter FTDI chip(1.5M)(USB TO 232 2 1PCS) - Newegg.com USB to RS232 serial port cable one drag four 4 * rs232COM multiple serial port adapter FTDI chip(1.5M)(USB TO 232 2 1PCS) - Newegg.com](https://c1.neweggimages.com/productimage/nb640/AWNTD2309130R802S0F.jpg)
USB to RS232 serial port cable one drag four 4 * rs232COM multiple serial port adapter FTDI chip(1.5M)(USB TO 232 2 1PCS) - Newegg.com
![USB to RS232 serial port cable one drag four 4 * rs232COM multiple serial port adapter FTDI chip(1.5M)(USB TO 232 4 1PCS) - Newegg.com USB to RS232 serial port cable one drag four 4 * rs232COM multiple serial port adapter FTDI chip(1.5M)(USB TO 232 4 1PCS) - Newegg.com](https://c1.neweggimages.com/productimage/nb640/AWNTD2309130R7ZSO16.jpg)
USB to RS232 serial port cable one drag four 4 * rs232COM multiple serial port adapter FTDI chip(1.5M)(USB TO 232 4 1PCS) - Newegg.com
![2 Port USB 2.0 to Serial Adapter Hub - Serial Cards & Adapters | Add-on Cards & Peripherals | StarTech.com 2 Port USB 2.0 to Serial Adapter Hub - Serial Cards & Adapters | Add-on Cards & Peripherals | StarTech.com](https://media.startech.com/cms/products/gallery_large/icusb2322i.main.jpg)