HDMI Ethernet Channel - Connects devices through display to internet. Audio Return Channel - Connects your home theatre system to display via one cable 3D Support - Enhance your visual experience ...

Not according to [techtoys], who has created an Arduino shield that creates an HDMI output from an SPI control input. This is a project that seems to have been around for a couple of years ...

Uniform measurement procedures and technology are provided for determining the shielding effectiveness of shielded power cables and connectors for rail vehicles at frequencies from 9 kHz to 30 MHz ...