ComboBox - Dropdown
<ComboBox /> can behave like a dropdown list, with a behaviour very close to html select element. In this configuration, the <ComboBox /> input is read-only, so the user can select a value via mouse interaction and keyboard navigation (so the value cannot be typed-in to filter).
The dropdown <ComboBox /> can be both controlled and uncontrolled and can be single or multiple.
In most cases, an Autocomplete <ComboBox /> provides a better experience to the user. Have a look at the Autocomplete page for details and examples.