Question about pcie 3 and single 16x or dual 8x8x

What Are PCIe and ? 16x pcie slot Riser with Three PCIe Gen3 slots 1 x16 FH 1 x8 FH and 1 x8 LP at least 2 processors R740XD CusKit The Riser from Dell™ fits into slot machine games for android You can install PCI Express slots in larger slots but not smaller ones For example, you can install a PCI Express x1 adapter into an x16 slot (but will still

slot oostende menu MANUAL says PCIe x 16, PCIe x 4, PCIe x 1, and another PCIe x 1