4x1 PCIE Riser

Does anyone have any experience with 4x1 risers. I have 4 PCIE slots and 5 GPUs

I have a MSI B550 Gaming plus motherboard.

AMD Ryzen 5 3600 CPU
2x Nvidia 1070
Nvidia 2070
AMD 480 8GB
AMD 5700xt

They work fine for me, using one to get 4 cards out of a 2 slot micro atx … it was plug and play

I use it. I am very pleased. It did not cause any problems.