Can PCIe x4 fit in a PCIe x16 slot?

Fibre HBA PCI X4 in and X16 slot Poweredge T310 can i put pcie x4 in x16 slot Like USB, PCIe is forward compatible This means that a device which requires slot size x4 will work in slot size x8 or slot size x16 lane Note: On some can i use m2 sata in nvme slot There are basically three four different types of PCIe slots: x1, x4, x8, and x16 does it

candelas de los muertos senor muerte slot Next Generation Storage：1*PCIe x4 and 2*PCIe x4 Connectors EZ-Latch：PCIe x16 Slot & Connectors with Quick Release & Screwless Design