will a pcie 3.0 work in a pcie 4.0 slot

AMBIL SEKARANG

Can I Use a PCIe 4.0 NVMe SSD in a PCIe 3.0 Motherboard Slot?

Learn whether PCIe 4.0 NVMe M.2 SSDs will work in PCIe 3.0 M.2 motherboard slots. Can I use a PCIe 4.0 NVMe SSD in a PCIe 3.0 M.2 motherboard slot? … A PCIe 4.0 NVMe SSD will

‎XPS 8930, SSD for PCIe x4 slot | DELL Technologies

Will a PCIe x4 SSD work on a PCIe x2 slot? How much performance will be lost if it does? Will it be worth it?

What is PCI Express? Do PCIe lanes, slots, and versions matter?

Since Nvidia graphics cards currently generally force a fallback to 3.0, a PCIe 4.0 slot will only run on 3.0, i.e. as PCIe 3.0 x16 @16 and @8, whereby the latter could well lead to limitations and bandwidth limits.