Sockets (and especially backplanes) are absolutely atrocious for signal integrity.

I guess if it's possible to have 30cm PCIe 5 riser cables, it should be possible to have a backplane with traces of similar length.

	▲	namibj 3 days ago \| parent [-]
		Cables much better sadly, so much so that they started to use cables to jump across the server main board in places.