PCIe x4 into x16, but what about the transfer speeds?

Lightning Fast Game experience: PCIe slots, Lightning Gen 4 x4 ; LAN: Upgraded network solution for professional and multimedia use Delivers a

Pcie 4x slot vs pcie 16x slot Will it impact gpu performance when inserted in low

pcie slot bracket Yes, it works just fine, obviously it's only work at x4 speed I would check whether the x16 slot can handle the power load of the

pcie m2 slot IPCIE16XD11 is Multiple SFF-8654 x4 to PCIe x16 Slot Expansion with Broadcom MegaRAID 9560-16i, 9560-8i, 9580-8i8e, 9500-16i, 9500-8i,