PCIe x1 card won't work in any slot but the x16 slot directly below GPU

GLOTRENDS PA21 Dual NVMe to PCIe X8 Adapter Without PCI-E X1 slot I must say, this little adapter has exceeded my expectations

Graphic cards use the longest PCI x16 slots PCIe x1 interface has 36 pins arranged in pairs of 18 pins Out of 36 pins, only 6 pins are functional pins and the

pcie 40 in 30 slot Providing total bandwidth of up to 250MBps from the x1 PCIe host controller card, which allows the host computer to function as though the cards in the

pcie slot qrelease The PCIe x1 slot is the smallest PCI Express slot and has the lowest throughput compared to larger PCIe slots such as the PCIe x16 slot