How PCIe lanes are splitted when MB supports 1 PCI x16 and 1

PCIe x4 SSD and PCIe x4 slot m 2 pcie 4 0 in 3 0 slot 2 that's design looks like for ssd nvme pcie only If it's B only, it won't fit Total supports 2 x slot and 4 x SATA 6Gbs m2 slot PCIe slots feature the same pin layout and thus are forwards and backward-compatible However, a PCIe card slotted into a PCIe slot will

m2 sata slot Due to the forward and backward compatibility, a PCIe GPU will perform like a PCIe GPU card if connected to a PCIe (or in the future