The Plex Pass is a subscription service offered by Plex, a global media streaming platform. It provides users with enhanced features and capabilities for their Plex Media Server. Subscribers gain access to premium features such as offline access to media through mobile sync, Live TV, DVR support for recording, advanced metadata and artwork, multi-user support with parental controls, early access to new features, and integration with TIDAL music streaming service. It also offers Plex Pass Perks, which include discounts and offers on partner products and services.