Can't get 4th GPU to show up - Motherboards

From AnandTech: Asus this week formally introduced its ASUS Dual GeForce RTX 4060 Ti SSD OC Edition 8 GB graphics card, an unusual video

M-shape configuration and its touch sensitive digital control stick However slot for vibration feedback, where the PlayStation's Dual Shock had

gpu with nvme slot ADT-Link Key M NVMe External Graphics Card Stand Bracket with x4 Riser Cable 25cm 50cm 32Gbs for ITX STX NUC VEGA64 GTX1080ti

gpu with m2 slot ADT-Link Key M NVMe External Graphics Card Stand Bracket with x4 Riser Cable 25cm 50cm 32Gbs for ITX STX NUC VEGA64 GTX1080ti