PCI Express Gen4 - 3 slot passive backplane

The motherboard must support PCIe split function and be able to set PCIe X4X4X4X4 or 4X4 mode; the motherboard

There's no NVMe SSD designed to use more than 4 lanes of PCIe Those are just NVMe to PCIe slot adaptors so technically it is

nvme slot types If you connect a PCIe GPU to a PCIe slot, you will only get the PCIe standard performance If you connect a PCIe GPU to a PCIe

nvme m2 slot Xgig CEM-slot, 4-lane Interposer Module for PCI Express The PCIe4, 4 3 NVMe SSD for input to the VIAVI PCIe Analyzer Xgig , 4