This adapter is great for laptops that don't have PS/2 ports. Now you can plug your PS/2 mouse and keyboard into your laptop in a matter of seconds. Compliant to USB HID Specification;USB Bus Powered;Supports Plug and Play Specification;Supports Windows 98SE, ME, 2000, XP, Vista, Mac OS 9.x, 10.x & Linux Just use this converter to convert your old PS/2 keyboard and mouse into USB devices to use them on any computer Old PS/2 keyboard and mouse with circular type pins are not supported on newer laptops and computers