Logitech MouseMan® is a high-performance 3-button mouse with a heavy ball, buttons with finger grooves and a unique thumb indentation. MouseWare also allows you to customize cursor options and includes the Smart Move™ feature which automatically moves the cursor to default selection boxes. Logitech MouseMan is Plug and Play, automatically recognized and configured under Windows 95. Microsoft has qualified Logitech Mouseman mouse hardware compliant with Windows 95 and Windows NT. MouseWare supports Windows 95, Windows 3.1 and DOS. The Logitech Mouseman 3 Button mouse comes with an adapter for both serial DB9 and PS/2 connection so it is very compatible with all PC systems.