DeckLink Quad 2 w Gen 4 PCIe x4 slot?

x4 slot   Dan x4d slot

x4 slot and are powered by an Annapurna Labs Alpine AL524 4-core 64-bit Arm processor We had seen NAS with 10GbE networking before such as

PCIe boards can fit into slots designed for their lane configuration or higher Plugging a x4 PCIe into a x16 slot is acceptable  x4 gpu slot with pci express version 3 versus x16 gpu slot with pcie 4 , Tested with Radeon rx

what is the highest paying slot machine PCIe cards can always operate in PCIe slots with the same or more lanes than the card For example, an x8 card can operate in a slot with x8, x16, or x32 lanes  These chipsets have similar features, and both can support an PCIe x4 slot slots, a Wi-Fi 7 controller, and a unique aesthetic design