HDMI Ethernet Channel: 
Adds high-speed networking to an HDMI link, allowing users to take full advantage of their IP-enabled devices without a separate Ethernet cable. 
Audio Return Channel: 
Allows an HDMI-connected TV with a built-in tuner to send audio data "upstream" to a surround audio system, eliminating the need for a separate audio cable. 
3D: 
Defines input/output protocols for major 3D video formats, paving the way for true 3D gaming and 3D home theater applications. 
4K Support: 
Enables video resolutions far beyond 1080p, supporting next-generation displays that will rival the Digital Cinema systems used in many commercial movie theatres. 
Content Type: 
Real-time signalling of content types between display and source devices, enabling a TV to optimize picture settings based on content type. 
Additional Colour Spaces: 
Adds support for additional colour models used in digital photography and computer graphics. 
Automotive Connection System: 
New cables and connectors for automotive video systems, designed to meet the unique demands of the motoring environment while delivering true HD quality. 
Backwards-Compatibility: 
Fully backwards-compatible with existing HDMI devices and their features.

Astrotek HDMI Cable 3m 19pin Male to Male Gold Plated 3D 1080p Full HD High Speed with Ethernet
High Speed HDMI with ETHERNET(1.4v) Cable,19pin AM/AM, 30AWG, OD6.0mm Gold plated,RoHS

HDMI Ethernet Channel:
Adds high-speed networking to an HDMI link, allowing users to take full advantage of their IP-enabled devices without a separate Ethernet cable.
Audio Return Channel:
Allows an HDMI-connected TV with a built-in tuner to send audio data "upstream" to a surround audio system, eliminating the need for a separate audio cable.
3D:
Defines input/output protocols for major 3D video formats, paving the way for true 3D gaming and 3D home theater applications.
4K Support:
Enables video resolutions far beyond 1080p, supporting next-generation displays that will rival the Digital Cinema systems used in many commercial movie theatres.
Content Type:
Real-time signalling of content types between display and source devices, enabling a TV to optimize picture settings based on content type.
Additional Colour Spaces:
Adds support for additional colour models used in digital photography and computer graphics.
Automotive Connection System:
New cables and connectors for automotive video systems, designed to meet the unique demands of the motoring environment while delivering true HD quality.
Backwards-Compatibility:
Fully backwards-compatible with existing HDMI devices and their features.