http://www.qualitycables.com.au/ The current de facto standard for connecting digital media components is the HDMI cable. Several versions have been created with each using the same format but progressively allow for more advanced capabilities as the need for greater data transfer rates is required.

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HDMI Cable Has Many Different
Variations
The current de facto standard for connecting digital
media components is the HDMI cable. Several versions
have been created with each using the same format but
progressively allow for more advanced capabilities as
the need for greater data transfer rates is required.
The original specifications for the connectors are
still being used but over time smaller connectors
have also been introduced.
The original intention was to create a connection
that was backward compatible with DVI which was the
standard for HDTV in 2002. They are still
electronically compatible and you can connect a PC to
an HD screen using an asymmetric cable or and
adaptor. DVI does not allow for the audio channel
however and a standard connection will have to be
used for sound.
The video, audio and auxiliary information are all
carried on the same channels in an HDMI cable. There
are separate channels for other function such as
determining which formats different devices support.
All of the components can be controlled using a
single remote if the systems are compatible using the
Consumer Electronics control.
The different versions that have been release are
broadly categorized as 1.0 to 1.4. They are no longer
defined by the version number on parts and components
however and in order to see if an HDMI cable is
compatible with your requirements it will have the
bit rate and supported features listed. From the
start they have been capable of supporting Blu-ray

2. and HD DVD but the latest can handle 3D and 4K x 2K
resolution. It also has a channel for Ethernet and
audio return.
The original connector is the type A with 19 pins and
a flat steel plug similar to USB. Newer types have
been made smaller but still have the same number of
pins. Type B is not in use by any system yet but it
has 29 pins and twice the bit rate so it might come
in to use in the future.
A mini connector which is now standard on all digital
video recorders is known as Type C. Even smaller than
that is the Type D that is found on portable devices
such as tablet computers and Type E is for automotive
applications.
HDMI cable come in standard lengths and are usually
quite short because of the low power signal. If
greater length is required then a high speed cable
which has less resistance might be sufficient. To
increase the length of a standard cable a booster can
be added which will be powered by 5V that is supplied
by the power channel.
http://www.qualitycables.com.au/