Will PCIe x1 x4 cards work in x16 slot?

PCIe x4 into x16, but what about the transfer speeds? can i put pcie x4 in x16 slot A PCIe card and mainboard will negotiate the connection to the fastest supported by both So a x4 card will fully utilize a x4 slot can i use a pcie 40 gpu in a 30 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

can you run pcie 40 in 30 slot PCIe x4 devices are compatible with larger PCIe slots such as x8 and x16, and can be installed in these slots as well However, the bandwidth of the device is