Will this x4 PCIe card fit in the x16 slot of a Dell PowerEdge r310?

What is a PCIe slot with an x4 slot and x16 connector? pcie x4 in x16 slot 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 splitter B550M DS3H ACAMD B550 Ultra Durable Motherboard with Pure Digital VRM Solution, PCIe x16 XPG GAMMIX S50 CORE PCIe Gen4 x4 2280 Solid State Drive –

pcie 2 slot If it's a motherboard slot you're talking about it means it's a x16 physical slot but there are only x4 electrical connections, meaning that