1.2 layer PCB bard designing.
2.1-slot PCI-E 1X riser card with normal ribbon cable.
3. 20cms ribbon cable is flexible for bitcoin miner chassis.
4.support PCIe 1X card and 4X,8X,16X card(only provide 1X speed).
5, extra molex(12V/GND) power supply for PCI-e video card.
Note: This riser cable need to add extra power cable then it can work.