Why does the UDH-4K come in 2 versions, HDMI output and Dataport output?

Why does the UDH-4K come in 2 versions, HDMI output and Dataport output?

Because the UDH-4K produce so much data, the current HDMI standard must lower the frame rate to 30fps (and the output from progressive scan to interlace). The Dataport connection allows higher throughput so the full 60fps progressive scan output of the camera can be realized. There are many more monitor options for HDMI connection (especially in the larger sizes) so monitor availability must be weighed against performance. We expect the next generation HDMI 2 standard to alleviate this issue.