![Amazon.com: PCIE 2 Port Serial Expansion Card PCI Express to Industrial DB9 Serial / RS232 COM Port Adapter 16C550 UART WCH382 Chip for Desktop PC Windows 10 with Low Bracket : Electronics Amazon.com: PCIE 2 Port Serial Expansion Card PCI Express to Industrial DB9 Serial / RS232 COM Port Adapter 16C550 UART WCH382 Chip for Desktop PC Windows 10 with Low Bracket : Electronics](https://m.media-amazon.com/images/I/41ll2lCifCL._AC_SY580_.jpg)
Amazon.com: PCIE 2 Port Serial Expansion Card PCI Express to Industrial DB9 Serial / RS232 COM Port Adapter 16C550 UART WCH382 Chip for Desktop PC Windows 10 with Low Bracket : Electronics
![Amazon.com: DTECH 2 Port PCI-E Serial Card RS232 PCI Express Adapter COM Port Expansion for Desktop Computer PC Windows 10 8 7 XP Vista Linux Mac with 16C550 UART : Electronics Amazon.com: DTECH 2 Port PCI-E Serial Card RS232 PCI Express Adapter COM Port Expansion for Desktop Computer PC Windows 10 8 7 XP Vista Linux Mac with 16C550 UART : Electronics](https://m.media-amazon.com/images/I/41N2e5kTrOL._AC_SY580_.jpg)
Amazon.com: DTECH 2 Port PCI-E Serial Card RS232 PCI Express Adapter COM Port Expansion for Desktop Computer PC Windows 10 8 7 XP Vista Linux Mac with 16C550 UART : Electronics
![Amazon.com: DTech 4 Port USB to Serial RS232 Adapter Cable 4ft with FTDI Chip FT232 Compatible with Windows 11 10 8 7 XP Mac Linux for Multiple RS-232 Devices Raspberry Pi Switch Router Modem : Electronics Amazon.com: DTech 4 Port USB to Serial RS232 Adapter Cable 4ft with FTDI Chip FT232 Compatible with Windows 11 10 8 7 XP Mac Linux for Multiple RS-232 Devices Raspberry Pi Switch Router Modem : Electronics](https://m.media-amazon.com/images/I/71sqTPlZhdL.jpg)
Amazon.com: DTech 4 Port USB to Serial RS232 Adapter Cable 4ft with FTDI Chip FT232 Compatible with Windows 11 10 8 7 XP Mac Linux for Multiple RS-232 Devices Raspberry Pi Switch Router Modem : Electronics
![Amazon.com: PCIe Combo Serial Parallel Expansion Card PCI Express to Printer LPT Port RS232 Com Port Adapter IEEE 1284 Controller Card WCH382 Chip for Desktop PC Windows 10 with Low Bracket : Electronics Amazon.com: PCIe Combo Serial Parallel Expansion Card PCI Express to Printer LPT Port RS232 Com Port Adapter IEEE 1284 Controller Card WCH382 Chip for Desktop PC Windows 10 with Low Bracket : Electronics](https://m.media-amazon.com/images/I/41aWMGUD6UL._AC_.jpg)
Amazon.com: PCIe Combo Serial Parallel Expansion Card PCI Express to Printer LPT Port RS232 Com Port Adapter IEEE 1284 Controller Card WCH382 Chip for Desktop PC Windows 10 with Low Bracket : Electronics
![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/31kN2dpDYZL._AC_.jpg)
Amazon.com: Plugable USB to Serial Adapter Compatible with Windows, Mac, Linux (RS-232DB9 Female Connector, Prolific PL2303HX Rev. D Chipset) : Electronics
![Amazon.com: USB Type C to RS232 DB9 Serial(9-Pin) Converter Adapter Cable with a Male to Female Connector, Compatible with MAC OS, Windows, Android, Linux USB C Device (5 FT) : Electronics Amazon.com: USB Type C to RS232 DB9 Serial(9-Pin) Converter Adapter Cable with a Male to Female Connector, Compatible with MAC OS, Windows, Android, Linux USB C Device (5 FT) : Electronics](https://m.media-amazon.com/images/I/61YRgx0LDML.jpg)
Amazon.com: USB Type C to RS232 DB9 Serial(9-Pin) Converter Adapter Cable with a Male to Female Connector, Compatible with MAC OS, Windows, Android, Linux USB C Device (5 FT) : Electronics
![Amazon.com: DTECH 2 Port PCI Serial Card PCI to COM Port DB9 RS232 Expansion Adapter for Desktop Computer PC Windows 10 8 7 XP Vista with 16C550 UART : Electronics Amazon.com: DTECH 2 Port PCI Serial Card PCI to COM Port DB9 RS232 Expansion Adapter for Desktop Computer PC Windows 10 8 7 XP Vista with 16C550 UART : Electronics](https://m.media-amazon.com/images/I/41VpIJx+1UL._AC_.jpg)
Amazon.com: DTECH 2 Port PCI Serial Card PCI to COM Port DB9 RS232 Expansion Adapter for Desktop Computer PC Windows 10 8 7 XP Vista with 16C550 UART : Electronics
![Amazon.com: CERRXIAN 1FT RS485 to USB Terminal Converter Serial Port Cable for Windows 7 8 10 : Electronics Amazon.com: CERRXIAN 1FT RS485 to USB Terminal Converter Serial Port Cable for Windows 7 8 10 : Electronics](https://m.media-amazon.com/images/I/31IQ0ArYkKL._AC_SY1000_.jpg)
Amazon.com: CERRXIAN 1FT RS485 to USB Terminal Converter Serial Port Cable for Windows 7 8 10 : Electronics
![Amazon.com: Tripp Lite USB to RS485/RS422 FTDI Serial Adapter Cable, COM Retention, USB-A to DB9 M/M, Compatible with Windows, Mac and Linux, 30 in. (U209-30N-IND) : Electronics Amazon.com: Tripp Lite USB to RS485/RS422 FTDI Serial Adapter Cable, COM Retention, USB-A to DB9 M/M, Compatible with Windows, Mac and Linux, 30 in. (U209-30N-IND) : Electronics](https://m.media-amazon.com/images/I/41S-1VZzsXL._AC_.jpg)
Amazon.com: Tripp Lite USB to RS485/RS422 FTDI Serial Adapter Cable, COM Retention, USB-A to DB9 M/M, Compatible with Windows, Mac and Linux, 30 in. (U209-30N-IND) : Electronics
![Amazon.com: DTech USB to RS485 Adapter RS422 Serial Port Cable with CP2102 Chip Terminal Board LED Lights Ferrite Core for Windows 11 10 8 7 XP Mac (5 Feet) : Electronics Amazon.com: DTech USB to RS485 Adapter RS422 Serial Port Cable with CP2102 Chip Terminal Board LED Lights Ferrite Core for Windows 11 10 8 7 XP Mac (5 Feet) : Electronics](https://m.media-amazon.com/images/I/41IulTzOFbS._AC_SY1000_.jpg)
Amazon.com: DTech USB to RS485 Adapter RS422 Serial Port Cable with CP2102 Chip Terminal Board LED Lights Ferrite Core for Windows 11 10 8 7 XP Mac (5 Feet) : Electronics
![Amazon.com: UGREEN USB to RS232 Adapter Serial Cable DB9 Male 9 Pin with PL2303 Chipset RS-232 Converter Cable for Windows 10 8.1 8 7 XP Vista, Mac OS, Linux, 3FT : Electronics Amazon.com: UGREEN USB to RS232 Adapter Serial Cable DB9 Male 9 Pin with PL2303 Chipset RS-232 Converter Cable for Windows 10 8.1 8 7 XP Vista, Mac OS, Linux, 3FT : Electronics](https://m.media-amazon.com/images/I/61N0K3md5nL.jpg)
Amazon.com: UGREEN USB to RS232 Adapter Serial Cable DB9 Male 9 Pin with PL2303 Chipset RS-232 Converter Cable for Windows 10 8.1 8 7 XP Vista, Mac OS, Linux, 3FT : Electronics
![Amazon.com: Tera Grand - USB C to RS232 Serial DB9 Adapter Cable with Hex Nuts and FTDI chipset, Supports Windows 11, 10, 8, 7, Vista, XP, 2000, 98, Linux and Mac, 3 Ft : Electronics Amazon.com: Tera Grand - USB C to RS232 Serial DB9 Adapter Cable with Hex Nuts and FTDI chipset, Supports Windows 11, 10, 8, 7, Vista, XP, 2000, 98, Linux and Mac, 3 Ft : Electronics](https://m.media-amazon.com/images/I/61+QNOlWu3L.jpg)
Amazon.com: Tera Grand - USB C to RS232 Serial DB9 Adapter Cable with Hex Nuts and FTDI chipset, Supports Windows 11, 10, 8, 7, Vista, XP, 2000, 98, Linux and Mac, 3 Ft : Electronics
![Amazon.com: USB to Serial Adapter, DTECH DB25 DB9 RS232 to USB Cable 4 Feet with FTDI Chip Supports Windows 11 10 8 7 and Mac : Electronics Amazon.com: USB to Serial Adapter, DTECH 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/414RBC7FvxL._AC_.jpg)
Amazon.com: USB to Serial Adapter, DTECH DB25 DB9 RS232 to USB Cable 4 Feet with FTDI Chip Supports Windows 11 10 8 7 and Mac : Electronics
![Amazon.com: StarTech.com USB C to Serial Adapter Cable with COM Port Retention - 16 Amazon.com: StarTech.com USB C to Serial Adapter Cable with COM Port Retention - 16](https://m.media-amazon.com/images/I/31mOG0UnlYL._AC_.jpg)
Amazon.com: StarTech.com USB C to Serial Adapter Cable with COM Port Retention - 16" (40cm) USB Type C to RS232 (DB9) Serial Converter Cable - for PLCs, Scanners, Printers - Windows/Mac/Linux (ICUSB232PROC) :
![Amazon.com: DTech Serial Cable to USB Adapter DB9 Male RS232 Port Supports Windows 11 10 8 7 Mac (6 Feet, PL2303) : Electronics Amazon.com: DTech Serial Cable to USB Adapter DB9 Male RS232 Port Supports Windows 11 10 8 7 Mac (6 Feet, PL2303) : Electronics](https://m.media-amazon.com/images/I/41sXahRlkxL._AC_.jpg)
Amazon.com: DTech Serial Cable to USB Adapter DB9 Male RS232 Port Supports Windows 11 10 8 7 Mac (6 Feet, PL2303) : Electronics
![Amazon.com: Jeirdus USB to RS422 RS485 Serial Port Converter Adapter Cable with FTDI Chip Support Windows 10, 8, 7, XP and Mac with ESD Protection (6ft/1.8meter) : Electronics Amazon.com: Jeirdus USB to RS422 RS485 Serial Port Converter Adapter Cable with FTDI Chip Support Windows 10, 8, 7, XP and Mac with ESD Protection (6ft/1.8meter) : Electronics](https://m.media-amazon.com/images/I/41DwAK3-SYL._AC_SY1000_.jpg)
Amazon.com: Jeirdus USB to RS422 RS485 Serial Port Converter Adapter Cable with FTDI Chip Support Windows 10, 8, 7, XP and Mac with ESD Protection (6ft/1.8meter) : Electronics
![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/71HW-iEWmxL.jpg)
Amazon.com: Plugable USB to Serial Adapter Compatible with Windows, Mac, Linux (RS-232DB9 Female Connector, Prolific PL2303HX Rev. D Chipset) : Electronics
![Amazon.com: USB C to RS232 DB9 Serial Port Adapter Cable(USB-C to Serial, USB C to DB9, USB C to RS232) with FTDI Chipset Supports Windows 10 8 7 and Mac Linux… : Amazon.com: USB C to RS232 DB9 Serial Port Adapter Cable(USB-C to Serial, USB C to DB9, USB C to RS232) with FTDI Chipset Supports Windows 10 8 7 and Mac Linux… :](https://m.media-amazon.com/images/I/41k0CzGB9PL._AC_.jpg)
Amazon.com: USB C to RS232 DB9 Serial Port Adapter Cable(USB-C to Serial, USB C to DB9, USB C to RS232) with FTDI Chipset Supports Windows 10 8 7 and Mac Linux… :
![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/31rKLBkYF7L._AC_.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,
![Amazon.com: DTech 4 Port USB to Serial RS232 Adapter Cable 4ft with FTDI Chip FT232 Compatible with Windows 11 10 8 7 XP Mac Linux for Multiple RS-232 Devices Raspberry Pi Switch Router Modem : Electronics Amazon.com: DTech 4 Port USB to Serial RS232 Adapter Cable 4ft with FTDI Chip FT232 Compatible with Windows 11 10 8 7 XP Mac Linux for Multiple RS-232 Devices Raspberry Pi Switch Router Modem : Electronics](https://m.media-amazon.com/images/I/61Dg8hiyRLL.jpg)
Amazon.com: DTech 4 Port USB to Serial RS232 Adapter Cable 4ft with FTDI Chip FT232 Compatible with Windows 11 10 8 7 XP Mac Linux for Multiple RS-232 Devices Raspberry Pi Switch Router Modem : Electronics
![Amazon.com: DTech USB to Serial Adapter 10 ft, USB to RS232 DB9 Female Cable COM Port with FTDI Chipset Supports Windows 11 10 8 7 Mac Linux : Electronics Amazon.com: DTech USB to Serial Adapter 10 ft, USB to RS232 DB9 Female Cable COM Port with FTDI Chipset Supports Windows 11 10 8 7 Mac Linux : Electronics](https://m.media-amazon.com/images/I/51NLlv5lDdL._AC_.jpg)
Amazon.com: DTech USB to Serial Adapter 10 ft, USB to RS232 DB9 Female Cable COM Port with FTDI Chipset Supports Windows 11 10 8 7 Mac Linux : Electronics
![Amazon.com: DTech USB to RS422 RS485 Serial Port Converter Adapter Cable with FTDI Chip Supports Windows 11 10 8 7 XP Mac -1.5 Feet : Electronics Amazon.com: DTech USB to RS422 RS485 Serial Port Converter Adapter Cable with FTDI Chip Supports Windows 11 10 8 7 XP Mac -1.5 Feet : Electronics](https://m.media-amazon.com/images/I/511QewNMrxL._AC_SY1000_.jpg)
Amazon.com: DTech USB to RS422 RS485 Serial Port Converter Adapter Cable with FTDI Chip Supports Windows 11 10 8 7 XP Mac -1.5 Feet : Electronics
![Amazon.com: StarTech.com 3ft (1m) USB to Serial Cable, DB9 Male RS232 to USB Converter, Prolific IC, USB to Serial Adapter for PLC/Printer/Scanner/Switch, USB to COM Port Adapter, Windows/Mac (1P3FP-USB- SERIAL) : Electronics Amazon.com: StarTech.com 3ft (1m) USB to Serial Cable, DB9 Male RS232 to USB Converter, Prolific IC, USB to Serial Adapter for PLC/Printer/Scanner/Switch, USB to COM Port Adapter, Windows/Mac (1P3FP-USB- SERIAL) : Electronics](https://m.media-amazon.com/images/I/41C7BA49aIL._AC_.jpg)