I use a GPU with a PCI E x16 in my PCI E X4 slot What will

1 PCIe x16 slot; 4 SATA3, 2 x ; Graphics Output Options: HDMI & Display ; 1 Rear USB Gen2x2 Type-C, 1 Rear USB Gen2 Type-A

Physically yes, the slot connector for an x4 is generally smaller and PCIe is designed that smaller cards can occupy larger slots if needed

pcie slot pinout PCIe x4 speed vs x8 speed vs x16 speed Tested with rtx 3060 ti

pcie slot bracket The package also includes a two-slot expansion backplane and a PCIe x4 2-meter cable Plug the x4 host adapter card into an