Monoprice Premium 30ft Cabernet Series High Speed HDMI Cable w/RedMere Technology Supports Ethernet, 3D, 4K and Audio Return The Deep Color feature provides a minimum of 8-bits per color element (24-bits total) providing for a total of over 16 million color variations One end must be connected to the source device (e.g. Blu-ray player) and the other end to the sink/display Hooking them up backwards will not damage anything they just won't transmit a signal