How many simultaneous streams of data does the IX5000 support?

Cisco TelePresence IX5000 Series
• Rich multimedia experience on three 70-inch LCD screens
• Industry-first support for H.265 on a triple-screen product
• Powerful single codec handles five simultaneous streams of data – three video and two content
• Powerful 4K ultra-high-definition cameras and theater-quality audio
• Up to 30% lower TCO; zero-room remediation; half the bandwidth and power utilization; half the installation time.
Reference: http://www.cisco.com/c/en/us/products/collaboration-endpoints/immersive-telePresence/index.html