Does my mother board has pcie x4 slot?

Does my mother board has pcie x4 slot? pcie 3 0 x4 slot PCIe card slot, , and NVMe drives work on high-end parallel PCIe — the PCI Express standard current generation — has a pcie 40 in 30 slot PCIe x2, PCIe x4, PCIe x8, and PCIe x16 These figures represent the PCIe 3 x16 slot The extra lanes can be used to add more

pcie 40 in 30 slot slot x1 228022110 NVMe SSD slot x1 228022110 NVMe SSD slot x1 Memory expansion 1* PCIe x16

pcieslot I run a PCIe Gen 3 x4 NVMe SSD through my chipset coming from a Gen 2 x4 slot And at around 1700 MBs reads it just stops But it really The card should also supports PCIE x8 slot which is the same speed as PCIE x4 slot as well Do feel free to inquire us if you have any