Can PCIe x4 fit in PCIE x16?

Related questions

1. Can you put a PCI card in a PCIe x16 slot?
2. Is PCIe the same as PCI Express?
3. What is the purpose of a PCI slot?
4. What is the difference between PCI and PCIe?
5. Does PCI work in PCIe slot?
6. Is PCI compatible with PCI Express?
7. Why is PCIe faster than PCI?
8. Can I put a PCIe 4x in a 16x slot?
9. Can I install PCIe card in PCI slot?
10. Is PCI and PCIe compatible?

Tags

1. #slots
2. #longer
3. #first
4. #shorter
5. #legacy
6. #express
7. #wired
8. #should
9. #works