Does HDMI 2.0 require new cables? No, HDMI 2.0 features will work with existing HDMI cables. Higher bandwidth features, such as 4K@50/60 (2160p) video formats, will require existing High Speed HDMI cables (Category 2 cables).
後面的搜尋結果也有提到 Version 2.0 (like 1.4 before it) is entirely a hardware change. It is not a cable change. You can expect cable manufacturers to proclaim that you need expensive new "Version 2.0 cables" but this is untrue. Your current High Speed cables should work just fine .