Unidirectional Transmission?Highwings Fiber Optic HDMI Cable is the unidirectional transmission. The plugs at each end are marked SOURCE/DISPLAY , please note that source is the signal source (laptop, PC, ps4/ps3, Xbox and Blu-ray player, etc) and the display is the display end (monitor, TV, projector, etc). So make sure you plug in each end correctly (if not then you will get no image from the device). ?[High Quality HDMI Universal Compatibility] We have improved our craft constantly and adopt a unique SR joint design at both ends to effectively prevent joint cracking,Tips:This long HDMI cable contain amplifiers to ensure 4K signal transmission,It has a certain transmission direction, an inflow on the red side and an outflow on the black side. Please be careful when using it.Compatible with PS4,Projector,4K TVs and displays from brands such as Samsung,Dell,LG,Panasonic etc. ?[Newest Technology HDMI 2.0 Cable]Highwings Fiber Optic HDMI 2.0 Cable meets the latest standard HDMI 2.0 Version,which has been tested and certified,Designed for all devices with HDMI 2.0 standard as well as being backwards compatible with previous HDMI 1.4 , 1.3 & 1.2.The best partner for advanced technology and work-life balance,Allows you to enjoy a movie at home or do the presentation at the conference room in the high definition graphics images,gives you a vivid visual experience. ?[High Speed 18Gbps Data Capacity] Highwings 2020 NEWEST Advanced Technique High Speed HDMI 2.0 Cable transmits the data onto the speed up to 18Gbps of bandwidth and can be compatible . Transmit audio,video and photos at lightning speed without having to wait for buffering.Plug and play without preinstalling drivers.Each cable must undergo strict quality control checks during production . Every feature is tested to ensure you get the best builds quality. ?[4k High Definition HDMI Cable 100FT] Innovative improvement 4K HDMI Cable,Built with gold-plated connectors,and top American chips to ensure high-speed and flawless signal transmission,4K*2K Ultra HD technology with resolution up to 3840 x 2160 @ 60 Hz,support 4K video,including 3D and multiple view video.Full HD,1080p,HDR,Enjoy full HD crystal-clear TV sound quality while experiencing deep colors and high-resolution images,Provides you the best visual experience of ultra high definition.