Raspberry pi pcie to 4ch pcie

does enibody have expirience with this kind of board ( 4-Ch PCIe FFC Adapter Board for Raspberry Pi 5, Expands The PCIe Interface Of The Pi 5 To 4-Ch PCIe FFC Connectors, Supports Stacking Multiple PCIe HATs, Raspberry Pi 5 PCIe HAT | PCIe TO 4-CH PCIe HAT ) i bot one and it does not work, the hailo does work only on the second slot, the first is ok with the pi5 pcie connection. the other 3 no power at all. do not coment about 16p cable position pls,i also did the settings. i thing they dont work at all. i bot another one with 3 pcie chanels and nothing not even power. thank you

After considerable research, I’ve been forced stop my search, as NO Current PCIe (ffc) splitter(s)/switch(es) work with Hailo-10H. The RPi 5-16GB PCIe is not capable (PCIe v1 (Gen3 compatible via raspi-config > Adv Opt > PCIe Speed)).