Lightswitch77

Does this look legit? It says it ships to Iceland and it also says it's FREE shipping after the price tag and i also chose Iceland for the shipping aadress

Coolio, it's also quit cheap, i think i'll just go with that
 
EDIT: Is it able to OC at all just to be safe if i want?

Yeah, you are confused here.
 
The z170 Pro gaming Mobo has three PCIE 3.0 slots in it, same as the ROG Ranger. They each use the Z170 chipset, and the 16x slots on each mobo break down when used to 16x with one GPU, 8x/8x in dual cross fire mode and, sadly, 8x/8x/4x when a third card is added for 3-way crossfire.

There is no difference between the slot speeds of those mobos at all. I have not seen any z170 based mobo have 8x/8x/8x support in three-way crossfire mode. That is because there are only o many lanes to the CPU available on the Z170 chipset.
 
I didn't think the ROG VIII line at the lower end added enough to the mix to be worth the value over the Pro Gaming Mobo -- which is why I have recently bought two of them instead of the ROG boards.
 
What you are really getting with the ROG line is some finer tuning when it comes to manual adjustments of the core voltage for overclocking. I can say that my Azuz Pro Gaming overclocked my 6700k to 4.6 with no problems, clickety-boo, and supported the ram to 3200DDR4 via XMP with an updated BIOS profile with ease.

The same Asus Pro Gaming mobo overclocked  a 6600k, also to 4.6, with no problems. 
 
If I was interested in manually fine tuning both of these Skylake CPUs to squeeze everything I could out of them down to the very last GHZ, than the Maximus VIII might have helped a bit on that. Maybe.  Please appreciate that there are still LOTS of fine tuning the Asus Pro Gaming provides. The Ranger merely provides a wee bit more - but not enough to justify the price difference. Not even close, imo.

But I can get 4.6 out of these CPUs with 30 seconds of work in base clock adjustments in the UEFI BIOS, I'm happy.  For me, the Asus Z170 Pro Gaming was a good deal and the Ranger provided no marginal benefit to justify the price increase. 

NOTE: the reviews of the Asus Z170 Pro Gaming on Newegg reflect a great dissatisfaction with the BIOS support of lots of DDR4 memory sticks back in August-October of 2015. All of those issues have been addressed as of January 2016 and later. Update the BIOS first thing and you are fine with the Asus Pro Gaming Mobo, imo. 

I do know that many brick and mortar stores don't carry the Asus Pro Gaming mobo and push the ROG Maximus VIII line in preference to it. Mainly, that's because they see the Pro Gaming mobo will cannibalize sales of the higher margin ROG Maximus VIII line.
 
That should tell you all you need to know about whether the Asus z170 Pro Gaming mobo is a better deal. IMO, it clearly is.