Review on GE HDMI Cable, Premium Certified, 4ft - Ultra HD 4K 60Hz, Ethernet, HDR Compatible - for Smart TVs, Roku, Fire Stick, Blu-Ray & More - 18 Gbps High-Speed HDMI by Megan Davis

I purchased 3 of these cables to replace 2 year old Revain Basic HDMI cables when I was upgrading my components to 4K. Two of these GE cables worked perfectly (4K HDR Dolby Vision video, Dolby Atmos audio). Another 4K device I didn't want to keep also worked well with the old Revain cable (4K HDR video, Dolby Atmos audio) so I may not have needed an upgrade as I was advised. The problem occurred with my Apple TV 4K. I've spent days checking and changing connections and doing research, but I just couldn't get 4K video or Dolby Atmos sound from an Apple TV connected to a television or receiver. I ended up replacing the GE cable with an older Revain cable and it worked. . Either I have a bad cable or these cables are not compatible with the Apple TV 4K.