USB-2COM-S - Dual-port Serial-to-USB Communication Cable

Connected with a USB port, Multi-2/USB offers two serial communications ports. It is used to create a serial port that most laptop computers lack.  Furthermore, by adding two serial ports that a PC already has, it enables the computer to communicate with two equipments simultaneously.  Since Multi-2/USB simply utilizes a USB port to create a serial port, it could be interoperable with various asynchronous equipments such as terminals, modems, printers and scanners to replace the function of a serial port.