![Amazon.com: StarTech.com 4 Port USB to Serial RS232 Adapter - Wall Mount - Din Rail - COM Port Retention - FTDI USB to DB9 RS232 Hub (ICUSB2324I) : Everything Else Amazon.com: StarTech.com 4 Port USB to Serial RS232 Adapter - Wall Mount - Din Rail - COM Port Retention - FTDI USB to DB9 RS232 Hub (ICUSB2324I) : Everything Else](https://m.media-amazon.com/images/I/71d5VvmcKtL._AC_UF894,1000_QL80_.jpg)
Amazon.com: StarTech.com 4 Port USB to Serial RS232 Adapter - Wall Mount - Din Rail - COM Port Retention - FTDI USB to DB9 RS232 Hub (ICUSB2324I) : Everything Else
![Amazon.com: Startech Add Four Rs232 Serial Ports To Any Notebook Or Desktop Computer Using A Single U : Electronics Amazon.com: Startech Add Four Rs232 Serial Ports To Any Notebook Or Desktop Computer Using A Single U : Electronics](https://m.media-amazon.com/images/I/31MEGPI5ICL._AC_UF894,1000_QL80_.jpg)
Amazon.com: Startech Add Four Rs232 Serial Ports To Any Notebook Or Desktop Computer Using A Single U : Electronics
![Amazon.com: FTDI Type C RS232 Cable to DB9 Male Full Pinout Compatible with UC232 US232 Micro USB Serial Cable Type C Serial Cable … (150cm Type C ft232r) : Electronics Amazon.com: FTDI Type C RS232 Cable to DB9 Male Full Pinout Compatible with UC232 US232 Micro USB Serial Cable Type C Serial Cable … (150cm Type C ft232r) : Electronics](https://m.media-amazon.com/images/I/510JEWjaP2L._AC_UF1000,1000_QL80_.jpg)
Amazon.com: FTDI Type C RS232 Cable to DB9 Male Full Pinout Compatible with UC232 US232 Micro USB Serial Cable Type C Serial Cable … (150cm Type C ft232r) : Electronics
![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,
![Amazon.com: StarTech.com USB to Serial Adapter - 1 Port - COM Port Retention - Texas Instruments TIUSB3410 - USB to RS232 Adapter Cable (ICUSB2321X),Black : Electronics Amazon.com: StarTech.com USB to Serial Adapter - 1 Port - COM Port Retention - Texas Instruments TIUSB3410 - USB to RS232 Adapter Cable (ICUSB2321X),Black : Electronics](https://m.media-amazon.com/images/I/61Vb4DrfL2L.jpg)
Amazon.com: StarTech.com USB to Serial Adapter - 1 Port - COM Port Retention - Texas Instruments TIUSB3410 - USB to RS232 Adapter Cable (ICUSB2321X),Black : Electronics
![Amazon.com: DTech 6ft RS232 Serial Cable Extension Male to Female 9 Pin Straight Through, Laptop : Electronics Amazon.com: DTech 6ft RS232 Serial Cable Extension Male to Female 9 Pin Straight Through, Laptop : Electronics](https://m.media-amazon.com/images/I/61RCaa5x1jL.jpg)
Amazon.com: DTech 6ft RS232 Serial Cable Extension Male to Female 9 Pin Straight Through, Laptop : Electronics
![Amazon.com: USBGear 12 inch USB to Serial RS-232 DB-9 Pin Adapter with FTDI Chipset for Windows 10, 8, 7 and Mac Systems - Use for Laptop Serial Port, PDA, GPS, Modems, Routers and More : Electronics Amazon.com: USBGear 12 inch USB to Serial RS-232 DB-9 Pin Adapter with FTDI Chipset for Windows 10, 8, 7 and Mac Systems - Use for Laptop Serial Port, PDA, GPS, Modems, Routers and More : Electronics](https://m.media-amazon.com/images/I/61c5OqbCvZL.jpg)
Amazon.com: USBGear 12 inch USB to Serial RS-232 DB-9 Pin Adapter with FTDI Chipset for Windows 10, 8, 7 and Mac Systems - Use for Laptop Serial Port, PDA, GPS, Modems, Routers and More : Electronics
![Amazon.com: DriverGenius USB232A-B, USB to Serial RS232 DB9 Adapter with 3 x LEDs - Win11 & Mac (M/M, 3ft/1m) : Electronics Amazon.com: DriverGenius USB232A-B, USB to Serial RS232 DB9 Adapter with 3 x LEDs - Win11 & Mac (M/M, 3ft/1m) : Electronics](https://m.media-amazon.com/images/I/71B7Jc03QvL._AC_UF894,1000_QL80_.jpg)
Amazon.com: DriverGenius USB232A-B, USB to Serial RS232 DB9 Adapter with 3 x LEDs - Win11 & Mac (M/M, 3ft/1m) : Electronics
![Amazon.com: StarTech.com USB to Serial RS232 Adapter - DB9 Serial DCE Adapter Cable with FTDI – Null Modem - USB 1.1 / 2.0 – Bus-Powered (ICUSB232FTN) : Electronics Amazon.com: StarTech.com USB to Serial RS232 Adapter - DB9 Serial DCE Adapter Cable with FTDI – Null Modem - USB 1.1 / 2.0 – Bus-Powered (ICUSB232FTN) : Electronics](https://images-na.ssl-images-amazon.com/images/I/71T7YO2niHL._AC_UL600_SR600,600_.jpg)
Amazon.com: StarTech.com USB to Serial RS232 Adapter - DB9 Serial DCE Adapter Cable with FTDI – Null Modem - USB 1.1 / 2.0 – Bus-Powered (ICUSB232FTN) : Electronics
![Amazon.com: USB to 485/422 Converter Serial Port Industrial Communication Module RS485 Nine pin Nine pin DB9 Adapter RS232 Interface Laptop Adapter 3M : Office Products Amazon.com: USB to 485/422 Converter Serial Port Industrial Communication Module RS485 Nine pin Nine pin DB9 Adapter RS232 Interface Laptop Adapter 3M : Office Products](https://m.media-amazon.com/images/I/3122ldmV0OS._AC_UF1000,1000_QL80_.jpg)
Amazon.com: USB to 485/422 Converter Serial Port Industrial Communication Module RS485 Nine pin Nine pin DB9 Adapter RS232 Interface Laptop Adapter 3M : Office Products
![Amazon.com: OIKWAN USB to RS232, USB Serial Adapter with FTDI Chipset,USB 2.0 to Male DB9 Serial Cable for Windows 11,10, 8, 7, Vista, XP, 2000, Linux and Mac OS(6ft)… : Electronics Amazon.com: OIKWAN USB to RS232, USB Serial Adapter with FTDI Chipset,USB 2.0 to Male DB9 Serial Cable for Windows 11,10, 8, 7, Vista, XP, 2000, Linux and Mac OS(6ft)… : Electronics](https://m.media-amazon.com/images/I/41DRc0Z+PvL._AC_UF894,1000_QL80_.jpg)
Amazon.com: OIKWAN USB to RS232, USB Serial Adapter with FTDI Chipset,USB 2.0 to Male DB9 Serial Cable for Windows 11,10, 8, 7, Vista, XP, 2000, Linux and Mac OS(6ft)… : 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/61Dg8hiyRLL._AC_UF1000,1000_QL80_.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: SABRENT 6-FT USB to RS-232 DB9 Serial 9 pin Adapter (Prolific PL2303) (SBT-USC6K) : Electronics Amazon.com: SABRENT 6-FT USB to RS-232 DB9 Serial 9 pin Adapter (Prolific PL2303) (SBT-USC6K) : Electronics](https://m.media-amazon.com/images/I/81pEheRxqzL.jpg)
Amazon.com: SABRENT 6-FT USB to RS-232 DB9 Serial 9 pin Adapter (Prolific PL2303) (SBT-USC6K) : Electronics
![Amazon.com: USB Serial db9 ft232r USB rs232 Null Modem Cable pc Control tv Cable (2-RXD(Yellow), 3-TXD(Orange),5-GND(GND), 7-RTS(Green),8-CTS(Brown), 1/4/6/9-NC) : Electronics Amazon.com: USB Serial db9 ft232r USB rs232 Null Modem Cable pc Control tv Cable (2-RXD(Yellow), 3-TXD(Orange),5-GND(GND), 7-RTS(Green),8-CTS(Brown), 1/4/6/9-NC) : Electronics](https://m.media-amazon.com/images/I/71I8UZvl7yL._AC_UF1000,1000_QL80_.jpg)
Amazon.com: USB Serial db9 ft232r USB rs232 Null Modem Cable pc Control tv Cable (2-RXD(Yellow), 3-TXD(Orange),5-GND(GND), 7-RTS(Green),8-CTS(Brown), 1/4/6/9-NC) : Electronics
![Amazon.com: Tripp Lite 6ft 2-Port USB to DB9/ RS 232 Serial Adapter Cable FTDI, COM Retention M/M 6' (U209-006-2) : Electronics Amazon.com: Tripp Lite 6ft 2-Port USB to DB9/ RS 232 Serial Adapter Cable FTDI, COM Retention M/M 6' (U209-006-2) : Electronics](https://m.media-amazon.com/images/I/61uzsjoqydL._AC_UF894,1000_QL80_.jpg)
Amazon.com: Tripp Lite 6ft 2-Port USB to DB9/ RS 232 Serial Adapter Cable FTDI, COM Retention M/M 6' (U209-006-2) : Electronics
![Amazon.com: C2G 02318 8-Pin Mini-DIN M/M Serial RS232 Cable, Beige (10 Feet, 3.05 Meters), Laptop : Electronics Amazon.com: C2G 02318 8-Pin Mini-DIN M/M Serial RS232 Cable, Beige (10 Feet, 3.05 Meters), Laptop : Electronics](https://m.media-amazon.com/images/I/51Rk8lLQd5L._AC_UF894,1000_QL80_.jpg)
Amazon.com: C2G 02318 8-Pin Mini-DIN M/M Serial RS232 Cable, Beige (10 Feet, 3.05 Meters), Laptop : 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._AC_UF894,1000_QL80_.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: DTech 6 Feet USB to RS232 DB9 Female Serial Adapter Cable Windows 11 10 8 7 Mac Linux Serial to USB 2.0 (PL2303 Chip) : Electronics Amazon.com: DTech 6 Feet USB to RS232 DB9 Female Serial Adapter Cable Windows 11 10 8 7 Mac Linux Serial to USB 2.0 (PL2303 Chip) : Electronics](https://m.media-amazon.com/images/I/61iVRSG6xZL._AC_UF1000,1000_QL80_.jpg)
Amazon.com: DTech 6 Feet USB to RS232 DB9 Female Serial Adapter Cable Windows 11 10 8 7 Mac Linux Serial to USB 2.0 (PL2303 Chip) : Electronics
![Amazon.com: RS232 - New USB to RS-232 (9-pin) Serial Cable w/25-pin Serial Adapter - Add a Serial Port to Your PC via USB : Electronics Amazon.com: RS232 - New USB to RS-232 (9-pin) Serial Cable w/25-pin Serial Adapter - Add a Serial Port to Your PC via USB : Electronics](https://m.media-amazon.com/images/I/31d-PvHIKQL._AC_UF894,1000_QL80_.jpg)
Amazon.com: RS232 - New USB to RS-232 (9-pin) Serial Cable w/25-pin Serial Adapter - Add a Serial Port to Your PC via USB : Electronics
![Amazon.com: StarTech.com 10' RS232 Serial Null Modem Cable - Null modem cable - DB-9 (F) to DB-9 (F) - 10 ft (SCNM9FF) : Electronics Amazon.com: StarTech.com 10' RS232 Serial Null Modem Cable - Null modem cable - DB-9 (F) to DB-9 (F) - 10 ft (SCNM9FF) : Electronics](https://m.media-amazon.com/images/I/71qp7FqV3NL._AC_UF894,1000_QL80_.jpg)
Amazon.com: StarTech.com 10' RS232 Serial Null Modem Cable - Null modem cable - DB-9 (F) to DB-9 (F) - 10 ft (SCNM9FF) : Electronics
![Amazon.com: StarTech.com USB to Serial Adapter - 3 ft / 1m - with DB9 to DB25 Pin Adapter - Prolific PL-2303 - USB to RS232 Adapter Cable (ICUSB232DB25),Gray : Electronics Amazon.com: StarTech.com USB to Serial Adapter - 3 ft / 1m - with DB9 to DB25 Pin Adapter - Prolific PL-2303 - USB to RS232 Adapter Cable (ICUSB232DB25),Gray : Electronics](https://m.media-amazon.com/images/I/71jxSM2mTBL.jpg)
Amazon.com: StarTech.com USB to Serial Adapter - 3 ft / 1m - with DB9 to DB25 Pin Adapter - Prolific PL-2303 - USB to RS232 Adapter Cable (ICUSB232DB25),Gray : Electronics
![Amazon.com: Sabrent Universal Laptop Docking Station + USB 2.0 to Serial (9-Pin) DB-9 RS-232 Converter Cable : Electronics Amazon.com: Sabrent Universal Laptop Docking Station + USB 2.0 to Serial (9-Pin) DB-9 RS-232 Converter Cable : Electronics](https://m.media-amazon.com/images/I/61NXWIwWSJS._AC_UF894,1000_QL80_.jpg)
Amazon.com: Sabrent Universal Laptop Docking Station + USB 2.0 to Serial (9-Pin) DB-9 RS-232 Converter Cable : 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 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_UF1000,1000_QL80_.jpg)