StarTech.com USB Adaptor Cables - StarTech.com ICUSB2321X, The ICUSB2321X Professional grade USB Serial Adaptor cable from StarTech.com converts a USB 2.0 port into an RS232 serial port allowing you to connect to, monitor and control serial devices.A durable, single cable design makes this the perfect solution for mobile technicians who require serial connectivity. Once connected, the USB to serial adaptor retains assigned serial COM port values, allowing the same values to be automatically reassigned to the port provided by the adaptor in the event it is disconnected, then reconnected to the host computer. This innovative adaptor offers a professional grade solution for connecting legacy or industrial RS232 serial devices to more modern computers, or computers with unused USB ports. It is perfect for connecting serial modems, barcode scanners or any device with serial sync through USB, eliminating the expense of upgrading the serial peripheral for USB compatibility.It is backed by a 2-year warranty and free lifetime technical support. StarTech.com ICUSB2321X Professional USB To RS-232 Serial Adapter