A:AnswerI didn't even see that one in the store...possible because this on is Certified? It was pretty expensive, you're right. Was the Best Buy Essentials one certified too? And what IS certified?
A:AnswerYou need the supplied power cord that should have come with your cube and an HDMI cord to connect the cube to the TV. You have to supply the HDMI cord. This cord is a high speed HDMI (which is a good thing)
A:AnswerThe cable does use silver for a better connection and yes typically you'll want to watch out using cables that are too long. However I've pushed my 12 foot to it's limits and it's worked flawlessly. Don't think you'll run into issues.
A:AnswerThis cable is definitely overkill and I wouldn't say it would give you a better picture than the rocketfish 4k. The demos at best buy aren't fake or tampered with in any way, most settings/picture quality settings are stock.
A:AnswerIt definitely can. I'm using the same monitor and 100% recommend a good displayport cable however if you're connecting to a PC. Displayport will offer better colors than HDMI.