USB to Serial (RS232) converter board giving you conventional serial port connections from a modern USB device. Includes connections for DTR/RTS so ideal for Amateur Radio interfaces that require a PTT or CW-keying such as EchoLink, FT8/PSK/RTTY, CW macro keyer and other electronic projects.
You can even program a radio (eg: using CHIRP) by wiring the TX+RX to your radio's CAT port, remembering to crossover the TX+RX! eg: TX>RX, RX>TX, GND>GND. This can save you finding a dedicated CAT cable or allow you to easily program different radio's.