Connects to any standard serial device via USB Type A 9 Way D Male to USB A Male connectors Plug & Play – USB bus-powered with no external power supply required Compatible with Windows and Mac Operating Systems 2 year warranty The Lindy USB to Serial Converter Lite allows the user to easily connect peripheral devices featuring 9 Way Serial RS232 to a USB Type A port. With both USB Type A and serial connectors, this device is a perfect solution for connecting legacy RS232 equipment such as barcode scanners and industrial devices to notebooks and Macbooks, in retail and IT scenarios. This converter is compatible with both Windows and Mac operating systems and as it is USB bus-powered, it can be installed quickly and simply with no need for additional power supplies.