HDMI Cable Version 1.4 adds high-speed networking to an HDMI link, allowing users to take full advantage of their IP-enabled devices without a separate Ethernet cable. It also allows an HDMI-connected TV with a built-in tuner to send audio data "upstream" to a surround sound audio system, eliminating the need for a separate audio cable. The HDMI-2 defines input-output protocols for major 3D video formats, paving the way for true 3D gaming and 3D home theatre applications. The 4K x 2K resolution support enables video resolutions far beyond 1080p, supporting next generation displays that will rival the Digital Camera systems used in many commercial movie theatres. It also adds support for additional colour models used in digital photography and computer graphics.