For runs where a standard copper HDMI cable would struggle, this Goobay Optical Hybrid (AOC) cable uses fibre-optic core wiring to deliver a clean 4K@60Hz signal with Ethernet support over 100m — ideal for boardrooms, home theatres or any installation where the source and display are a long way apart. After comparing online prices, www.marvel.co.za should be the cheapest on this product.