ARD-200 RS232 to TTL Converter Interface Module
This product comes in handy when you are working with a computer that has RS232 ports available, instead of fumbling for precious USB I/O ports you can connect this device straight into the RS232 port.
If you want to supply 5v from the ±13V serial port socket you can do that with this device, also you can communicate your microcontroller projects to the computer using the additional supplied TX and RX pins.
Comes with a DC jack to USB for extending the line to connect with USB dependent devices and four female connectors to use instead of the USB connector. If you accidently plug in or damage the IC the bonus of this product is the removable MAX232EPE Chip from MAXIM, meaning a less costly repair and maintenance cost.