TRENDnet USB to Serial 9 Pin Converter Cable Connect a RS 232 Serial Device to a USB 2.0 Port Supports Windows and Mac USB 1.1 USB 2.0 USB 3.0 21 Inch Cable
![USB to Serial Adapter, BENFEI USB to RS-232 Male (9-pin) DB9 Serial Cable, Prolific Chipset, Windows 10/8.1/8/7, Mac OS X 10.6 and Above, 1.5M - Walmart.com USB to Serial Adapter, BENFEI USB to RS-232 Male (9-pin) DB9 Serial Cable, Prolific Chipset, Windows 10/8.1/8/7, Mac OS X 10.6 and Above, 1.5M - Walmart.com](https://i5.walmartimages.com/asr/ae683829-0e4f-40b6-9101-bcff5e864d04.14253dcaaa5eed9928c46a8c2803e5bb.jpeg?odnHeight=768&odnWidth=768&odnBg=FFFFFF)
USB to Serial Adapter, BENFEI USB to RS-232 Male (9-pin) DB9 Serial Cable, Prolific Chipset, Windows 10/8.1/8/7, Mac OS X 10.6 and Above, 1.5M - Walmart.com
![macos - Mac OS X Mountain Lion doesn't recognize devices plugged into USB serial ports - Stack Overflow macos - Mac OS X Mountain Lion doesn't recognize devices plugged into USB serial ports - Stack Overflow](https://i.stack.imgur.com/5ZDLC.png)