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[Music] hello everyone vicenteville from hdtvtest here in this video i am going to talk about certified hdmi 2.1 cables specifically known as the official name of ultra high speed hdmi cable as stipulated by hdmi licensing administrator who is the organization responsible for licensing and testing and certification of all these hdmi cables so i think you know a few weeks ago i had this crazy idea of trying to buy in a bunch in fact every hdmi 2.1 cable that are on sale on amazon trying to get them in and then testing all of them using the rtx 30 and id card connected to an lg c9 because the lg c9 has an hdmi 2.1 bandwidth of 48 gigabits per second but i have since scrapped that idea because these certified hdmi 21 cables have actually reached the market so there's really no point for me to do that sort of test anymore especially considering that now you can actually buy a certified hdmi