This product serves to connect a device with an RS232/UART interface to a USB (Universal Serial Bus) port (USB1.1 or USB2.0). The converter can convert interfaces with RS232 level, TTL level (5 V) & 3.3 Volt level to USB (Universal Serial Bus).
The circuit board of the converter is soldered in directly or via a socket strip. It is also possible to solder on a 9-pole Solder Sub D connector (such as Conrad Order No. 74 20 66) & attach a USB (Universal Serial Bus) cable it at the other end of the board.
If you do not solder on a 9-pole Sub D plug, it is possible to break off the corresponding part of the circuit board at a predetermined breaking point to save space on the own application.