A device that adds a serial port to a computer. It plugs into the USB port and contains one or more serial port sockets. See serial port.
"serial adapter." YourDictionary, n.d. Web. 16 August 2018. <http://www.yourdictionary.com/serial-adapter>.
serial adapter. (n.d.). Retrieved August 16th, 2018, from http://www.yourdictionary.com/serial-adapter