The ICUSB2321X Professional grade USB Serial Adapter cable converts a USB 2.0 port into an RS232 serial port allowing you to connect to, monitor and control your serial devices. A durable, single cable design makes this the perfect solution for mobile technicians/administrators that require serial connectivity. Once connected, the USB to serial adapter retains assigned serial COM port values, allowing the same values to automatically be re-assigned to the port provided by the adapter in the event it is disconnected, then re-connected to the host computer. This innovative adapter offers a professional grade solution for connecting legacy or industrial RS232 serial devices to more modern computers, or computers with unused USB ports – 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. Backed by a StarTech.com 2-year warranty and free lifetime technical support. The StarTech.com Advantage – Simple installation and operation with COM port retention provides robust serial connectivity for legacy devices with minimal hassle – Easy plug and play installation with USB Powered device – no power outlet required – Extensive list of compatible operating systems makes this device perfect for almost any RS232 application