HDMI cable I had to do a little research. From what I've learned, if it says "High Speed HDMI" then that's all you need for a 4k TV. Don't buy a really expensive HDMI because it's not worth it. They say you shouldn't spend more than $12-15. My direct HDMI cable lists it as a high speed cable, but it definitely offers better picture quality. I bought these because I needed a longer cord to run in the walls to hide the cords. $13 well spent. It happened to me with the color and the braided cords. I could have chosen any other HDMI name.