When building an application that communicates with external devices over COM or RS232 ports, you must ensure the ports can handle any data flow without errors or system lockups. This is especially critical for security and alarm systems, industrial automation, medical devices, and other use cases where data integrity and uptime are essential. If you need a simple way to stress-test COM/RS232 ports, don’t miss COM Port Stress Test—it does exactly what you need! 1 is a compact, affordable tool for testing COM, RS232, and RS485 (with converter) ports. It generates sustained data streams with randomized communication settings. Stress testing focuses on creating heavy, variable loads on communication ports, ensuring that if testing succeeds, your application will perform reliably under normal conditions. Developers and hardware engineers can test physical, virtual, and USB serial ports at maximum bandwidth and simulate harsh real-world conditions by rapidly toggling baud rate, flow control, and RTS/DTR states. Even better, COM Port Stress Test can work with two ports at the same time, so you can also test null-modem cables. Connection speed and the amount of data sent are displayed in real time. Bottom line: this software helps you push your serial communication to the limit. Knowing that your customers’ systems run without errors or lockups is invaluable. Try COM Port Stress Test and be confident you’ve done everything to ensure rock-solid stability under the most demanding conditions!Download COM Port Stress Test