A SuiteDash Page is a page that can be created, filled with information and resources (images, useful links, etc), and assigned to specific Contacts in your installation.
Pages can be assigned to one, some, or all Contacts in an installation (excluding Leads).
Any Contact that is assigned to a Page will be able to access that page, and they will see generally the same info as any other Contact (with exceptions being placeholders that are in the page, which render unique information based on who is logged in).
You can use Pages to share information, display announcements, photos, videos and much more, depending on your needs.
TUTORIAL : Creating a New Page