The overclocking-focused EVGA X570 Dark includes two M.2 sockets, eight SATA ports, a USB 3.2 Gen2x2 port, Wi-Fi 6 and 2.5 GbE.
EVGA X570 Dark Review: EVGA Embraces AMD : Read more
EVGA X570 Dark Review: EVGA Embraces AMD : Read more
Probably referring to the 4 slot spacing (slot 2 & 6) required for SLI with RTX 3090 , Basically all nvlink bridges for the RTX3090 are 4 slot designs, 3 slots bridge do exist but are hard to find.Mentioning SLI support as being rare on X570 is super weird. There are no fewer than 26 X570 based motherboards which support SLI listed in the community AM4 motherboard database spreadsheet, and it hasn't even been updated with the X570 Dark yet.