Question about NZXT Kraken X52 inkl. AM4

So just because it's not mentioned here doesn't mean the opposite. It is quite possible that the information has not yet been noted on the product page, as this product was already available before the release of the Threadripper CPUs and the manufacturers usually make an effort to make their old coolers compatible with new sockets by developing the corresponding mounting kit as far as possible. Therefore, always check the specifications with the manufacturer's site.