[essential]

Err - are you serious? There is no such thing as an HDMI 2.0 cable - the standard hasn't changed.

http://www.cnet.com/uk/news/4k-hdmi-cabl...-nonsense/

That article is from 2013 ... things may have changed a bit. While I agree a "better" hdmi cable won't produce a better picture, some things are supported in an hdmi 2.0 cable that aren't in older cables, at least on paper, mainly 4k @ 60fps, and hdcp 2.2, which may not matter because most hardware isn't up to that spec yet, but it's possible you could have a problem depending on your hardware and what you are trying to play.

I have a 4k Sony with 4 HDMI 2.0 ports, the Shield, and several 18.2Gbps cables. I'm actually curious now, I'm going to try and find the oldest cable I have and see if they still play my 4k test files (no idea what HDMI version they are though).

By the way, anyone looking to buy 18.2Gbps (hdmi 2.0 spec) cables, these are great, very thin, not expensive, and easy to route in entertainment centers.
http://www.monoprice.com/Category?c_id=1...id=1025508

I already had a couple but they cleared out the pink color a couple months ago for between 99 cents (3 foot) and $3 (15 foot) per cable and I bought a bunch.