SN750 PCIe 4x but 5 GTS only

PCIe vs : Is PCIe Worth the Upgrade? pcie 3 0 x1 slot A PCIe x1 slot has exactly one PCIe lane to use, and the same rule will generally apply moving up the ladder through x4, x8, and x16 slots Each available PCIe pcie 40 in pcie 30 slot PCIe Gen 3 was unable to accommodate the full bandwidth of high-speed PCIe NVMe SSDs This was effectively creating a bottleneck in SSD performance PCIe Gen 4

pcie slot sizes PCI Express X1 Adapter Riser Card PCIE X1 to X1 Slot Converter Card 90 Degree · PackageYes · Model NumberPCI-E 1X Riser Card · TypeCable Adapter · OriginMainland