PCI Express x4 network card into PCI-Express x16 slot?

PCIe boards can fit into slots designed for their lane configuration or higher Plugging a x4 PCIe into a x16 slot is acceptable

x8, x16 PCIe Gen 3 bandwidth, 1 GBs, 2 GBs, 4 GBs, 8 GBs, 16 GBs PCIe Gen 4 Does PCIe Gen 4 make PCIe NVMe SSDs faster? PCIe Gen 3 was unable to

pcle slot It's a slot of x16 size but electrically x4 This

pcle x16 slot Both the blue slots are PCIe x16 The difference is that the 2nd PCIe 16x is capable of wiring