what does wired mean in 'one PCIe x16 wired x4'

Will this x4 PCIe card fit in the x16 slot of a Dell PowerEdge r310? can i put pcie x4 in x16 slot PCIe x16 slot with faster bandwidth and lower impedance 2 PCIe Slot PCIe x4 slot with Lower impedance can maintain its performance can i buy a slot machine for my home The MS-01 is equipped with a PCIe x16 slot, allowing for the installation of high-performance external GPUs, network cards, storage controllers, and other

can i use a pcie 40 nvme in a 30 slot PCIe lanes the slot has As you will find out in this video, not all PCIe x16 slots