The Featured Cards Widget is being slowly phased out. But here it is anyway.
Featured Cards are becoming redundant as a navigation tool on a page. Use the Needs widget instead.
/sitecore/content/Repository/Widgets/Featured Cards Widgets
Easy peasy! Add your Title. Add your pages by double-clicking or using the > arrow. Remove by double-clicking or using the < arrow. Rearrange the order by using the up and down buttons. Remember, the cards show in rows of 3.
Single Featured Cards Widget
It is also possible to add a single Featured Cards widget to one of the three column placeholders on a Landing Page. Same set up as above, just select only one page. When adding the widget, select the separate Featured Card (not Cards) widget option in the column placeholder.
Featured Cards are being used less as the Needs widget takes over. It is possible to easily "convert" the Featured cards content to a Related cards slider:
The same applies for moving items from the Card Slider to the Related Cards widget. In the Raw values view, copy from the "Cards" field to the "Custom Cards" field.
See below a full Featured Cards Widget and the single Featured Card in action.