How many PCIe slots do I need? Is PCIe Gen 4 worth it?

How many PCIe slots do I need? Is PCIe Gen 4 worth it? pcie 4 slot 4U GPU expansion system · Up to 16 PCIe x8 slots · PCIe Gen4 x16 · Rackmount design · 4000W power supply · SKU: OSS-PCIe4-4UV-16-2 pcie 30 x4 slot 2 is x4 from CPU, 1 is x4 from chipset, the other 4 are split from the physical x16 slots via switches) With some to PCIE slot adapters you

pcie 30 x4 slot 2 slots, which will be PCIe X4 Gen 34

pcie 40 gpu in 30 slot PCI-e x16 connection or two PCI-e x8 connections The third slot is typically a PCI-e x4 connection This Card and slot types exist for x1, x4, x8, and x16 links Matrox A x1 electrical card in any compliant PCIe slot will always run in x1 electrical mode