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Many computers have an RS232 serial port, with the exception of Mac machines which do not include one. Connecting multiple devices to a computer requires a separate cable and serial port for each one. The flexibility of the RS232 communication protocol has led to its wide popularity. There are many software and hardware solutions that have been developed for the protocol. Here is the list of the best serial over network solutions designed to streamline your work with serial devices. The number of virtual serial ports you can create is only limited by your system’s capacity.