The Cisco TelePresence MCU 5300 series is a range of state-of-the-art multipoint control units (MCUs) that can grow with your business' video usage over the long term. As the industry's stackable MCU, it provides an entry-level appliance and flexible port that enables your video deployment to grow as your telepresence usage accelerates. Compatible with all major vendors' standard- and high-definition (SD and HD, respectively) endpoints, it delivers the excellent experience for each participant, every time.