Hero Unit

Hero unit (sometimes also called hero image) is a large visual block typically placed on the key pages of the website designed to grab attention and present most important products or services.

Hero units often use large images paired with a marketing message and an enticing Call to Action (CTA). In many cases, slideshows (or carousels) are used to show a number of offerings.

Hero unit on Xbox website features a slideshow showcasing a number of deals and new releases
Another example of a hero unit from Costco.com