risers work; but are definitely a hassle with wires and reliability.
this board looks promising because its from a reputable manufacturer; but;
1) no mSATA or m.2 slot
2) regular 2-slot spacing. No bueno. Needs to be 2.5 minimum when cramming more than 3-4 cards together. the center gpu's will feel the pain.
3) Need for 12V power to CPU port; via a jumper wire from side connectors. Just route the damned thing on the board. Theres no extra features; you have real-estate to work with; and layers. USE THEM.
4) 6 pin PCIE; 8 pin is way better. Plus many GPU use 8 pin.
Onda got it better for sure IMHO. I wonder how thick the board is... how thick the main power traces are (the Onda boards are beefy power traces and thick boards; seriously beefy).
Actually it has M.2 , Slot spacing is little bigger than 2-slot but yet smaller than Onda , CPU cable is supplied with the board unlike Colorful which i had to request cable from the seller . Quality is similar to Onda , yet the heaviest load i had on any of them was 800W mining XMR with 8x Under volted RX570 . most board/ASIC if not all use 6 pin including Onda , the only care about the 3 12V yellow wires