Questions about MSI GeForce GTX 1070 SEA HAWK X

yes of course by means of sli bridge

Unfortunately, we do not have any further information available at the moment. As soon as this changes, we will add to our range accordingly.

It is not assumed that you can make your own loop with the pre-assembled water loop, as these are manufacturer-specific.

A CM specification cannot be found on the manufacturer's website, but I think it is certainly sufficient for all ATX enclosures; otherwise the coolant hoses can be purchased cheaply by the metre. https://www.digitec.ch/de/s1/producttype/wasserkuehlung-schlauch-2134?so=5#listhead