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
![USB 2.0 to RS-232 / RS-422 / RS-485 Selectable Industrial Serial Adapter w/ 15kV ESD Surge Protection - Coolgear USB 2.0 to RS-232 / RS-422 / RS-485 Selectable Industrial Serial Adapter w/ 15kV ESD Surge Protection - Coolgear](https://www.coolgear.com/wp-content/uploads/2013/05/USB-COMi-M_02x800.jpg)
USB 2.0 to RS-232 / RS-422 / RS-485 Selectable Industrial Serial Adapter w/ 15kV ESD Surge Protection - Coolgear
![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)
Insignia™ 1.3' USB-to-RS-232 (DB9) PDA/Serial Adapter Cable, with Prolific Chipset Black NS-PU99501 - Best Buy
![Amazon.com: Cablemax FTDI USB to RS-232 / RS-422 / RS-485 Pro Grade Configurable Adapter : Electronics Amazon.com: Cablemax FTDI USB to RS-232 / RS-422 / RS-485 Pro Grade Configurable Adapter : Electronics](https://m.media-amazon.com/images/I/61oNfmeVyGL._AC_UF894,1000_QL80_.jpg)
Amazon.com: Cablemax FTDI USB to RS-232 / RS-422 / RS-485 Pro Grade Configurable Adapter : Electronics
![1 Port USB 2.0 to Serial Adapter Cable - Serial Cards & Adapters | Add-on Cards & Peripherals | StarTech.com 1 Port USB 2.0 to Serial Adapter Cable - Serial Cards & Adapters | Add-on Cards & Peripherals | StarTech.com](https://media.startech.com/cms/products/gallery_large/icusb2321x.main.jpg)
1 Port USB 2.0 to Serial Adapter Cable - Serial Cards & Adapters | Add-on Cards & Peripherals | StarTech.com
![Amazon.com: Plugable USB to Serial Adapter Compatible with Windows, Mac, Linux (RS-232/DB9 DTE Male Connector, Prolific PL2303HX Rev. D Chipset) : Electronics Amazon.com: Plugable USB to Serial Adapter Compatible with Windows, Mac, Linux (RS-232/DB9 DTE Male Connector, Prolific PL2303HX Rev. D Chipset) : Electronics](https://m.media-amazon.com/images/I/71sTBfmrQqL.jpg)
Amazon.com: Plugable USB to Serial Adapter Compatible with Windows, Mac, Linux (RS-232/DB9 DTE Male Connector, Prolific PL2303HX Rev. D Chipset) : Electronics
![Amazon.com: Cable Matters USB to Serial Adapter Cable (USB to RS232, USB to DB9) 3 Feet : Electronics Amazon.com: Cable Matters USB to Serial Adapter Cable (USB to RS232, USB to DB9) 3 Feet : Electronics](https://m.media-amazon.com/images/I/71W3B0SWvSL.jpg)