Quick Charge 2.0 means you'll be charging faster via more volts pushing amps. It's 9v charging. But, that's in America. Regular has been 5v for the longest time. QC 3.0 is something like 11 or 12v. I dunno what's up with the description on that UK one. I can't tell if it's just all fraudulent, lol (never trust anything that says "GENUINE OEM" on it), or if it is because of our different power standards. Our vehicles run on 12v alternators. Is it the same over there?
But, yeah, I bought one from Amazon.com and it's great.
https://www.amazon.com/gp/product/B017JTEQKO/ref=oh_aui_detailpage_o00_s00?ie=UTF8&psc=1
It's QC 2.0, not 3.0 at all. I had no use for QC 3.0, so saved a few bucks there. But, both ports can do QC 2.0, and both ports can put out a maximum of 2.4 amps to any phone that can take it. My last phone was an S5. At the most, it drew around 1.8 amps from the OEM wall charger. Yes, I have one of those little measuring things.
Did you know, that, at least on the S4 and S5, not only obviously would we charge slower with the screen on using the battery, but the phone itself, cuts down on the amps coming in. I assume it's to protect the battery or lower heat. Both would immediately drop to 1.0a or 1.1a, or one of each, as soon as you powered the screen on.
I've tested this S7 Active, but I'm not super familiar with these new charging standards of QC 2.0 using a 9v standard.
I don't believe for one second that's truly an OEM Samsung car charger. I've done the same thing, bought legitimate batteries, "OEM", the real deal, 5 star reviews, for a Nokia E71. It looked almost 100% identical, EXCEPT "China" was spelled "CHAINA".
They actually worked equal to the true OEM batteries.
My point is, I have a USB charging meter. I don't know what it's even called, lol, but I've seen a few aftermarket brands of chargers and how they work. Samsung is THE BEST. You can't beat them. They tend to put .1 to .2 more amps out while charging. Even a charger like that would come with, say, the S4 or S5, it's rated output is 5v @ 2.1a, I believe. I hooked two phones up to it and was pulling around 5.3v @ 2.5 amps.
A quality charger WILL have a higher actualy voltage output than rated. It's not harmful, it's a sign of quality.
EDIT: I just thought of something. If you are not buying in America, well, hell, you don't even have a Qualcomm Snapdragon 820, do you? Quick Charge is a Qualcomm word. Exynos uses "Adaptive Fast Charging".
Google the difference. Cause I sure can't tell. It's just a name game.