You should be able to get a copy of the actual certification certificate. If not, caveat emptor. Buying off of eBay, regardless of how honest the seller sounds should always be taken with a grain of salt. Personally, I stick to major retailers with solid customer support and written return policies. Companies like Monster charge very high prices for their cables with all sorts of claims but it basically comes down to "1s" and "0's". If you get video and audio without popping (audio) or sparkling (video), then that's about the best you are going to get. A $5 cable can perform, and quite often does, as well as a $50 cable.
I'm not sure what you mean my HDMI 2.0 leads. There is no such thing. HDMI is a hardware spec, not a cable or connector spec. A certified high speed HDMI cable can and will support HDMI 2.0 hardware specs and below (1.4b, 1.3a, etc). All of your devices have to have the HDMI 2.0 chipsets in order to be able to transmit the higher bandwidth necessary for the new specs. Those chipsets are not quite available yet. You can't magically connect a 1.4 hardware to a 2.0 extender, for example, and expect to get the 2.0 bandwidth. It doesn't work that way. That's why new tv's today that are being advertised as having HDMI 2.0 are a little bit ahead of the game as there are no devices (with the exception of a few brand new receivers and blu-ray players) that have the 2.0 chipsets. And out of those, it is unclear at this point in time just how much of the HDMI 2.0 protocols those chipsets have. STB's and game consoles will probably be the last to have the new chipsets when available. Some mfrs are advertising that their devices are "HDMI 2.0 Capable" or can be upgraded with a firmware/software update. Sony does that now but what the upgrade actually comprises is what some call HDMI 2.0 Lite. It's just a bandwidth nudge to be able to play some 4k video, which is actually at the upper limit of the HDMI 1.4 spec. Other mfrs, like LG, are saying that some of their newer tv's will be upgradeable with a board swap. Samsung is selling their new tv/monitors with an external box (One Connect) that is supposed to have all the latest bells and whistles but they are having some real issues with confusing firmware versions/updates, and other issues.
You can't harm anything by connecting a 1.4 device to a 2.0 input. You will just default back to the 1.4 spec but remember, all of your devices in that particular chain have to be able to support HDMI 2.0 and as it stands now, not all devices that are supposed to be HDMI 2.0 compatible support the same set of protocols, at least not yet.
If you need a new 4k tv today, then by all means get one. You really can't go wrong. But keep in mind that the fully compatible (or at least the features that are most important and realistic) HDMI 2.0 chipsets are just starting to become available (and the tv panels that can support the higher resolutions, color depth, etc) and then of course there is source material. It will be a long time, IMO, before cable/sat will be transmitting on a regular basis true 4k and the same holds true for blu-ray (or red-ray what ever the new term will be) movies. Games will probably more predominant initially because they don't have to follow the same video standards that movies do (REC.709 for example).
Thinner gauge wire is fine if you want the flexibility and not so much strain on the input end. If your runs are under 10', then you can probably get away with a thinner wire and sill be able to enjoy 3D or what ever you want. A thicker gauge wire can extend your run over the 25' limit but the wire will be stiffer and more difficult to work with, and there is also the possible extra strain on the input end. Redmere cables are active cables in that they have a little chipset in the end that connects to the tv so they draw a little power from the tv. The advantage is that the cables are really thin and flexible with absolutely no strain at all on the connector end. They are uni-directional cables but you can't harm anything by connecting them backwards. You just won't get a signal. You can run them at lengths much longer than 25' without any issues at all. The downside is that because there is a little chipset in the sink end, they can fail over time like any electronic device. But if you have easy access to the cables, you just replace them. They are a little more expensive but not unreasonably so. For runs under 10' or so, they are probably an overkill but that's up to you. I use Redmere only because I wanted the flexibility with no strain on the inputs. My cable access is easy so if I do have to replace them it's not a big deal.
Last edited by Otto Pylot; 06-22-2014 at 10:35 AM.