Finding a full speed PCIE to PCIE bridge adapter switch

ASUS Hyper x16 Gen5 Card Supports Four NVMe Devices up to 512 Gbps for AMD and Intel® Platform RAID Functions

Finding a full speed PCIE to PCIE bridge adapter switch Dual Channel DDR5：4*DIMMs with XMP memory module support; PCIe UD Slot X： PCIe x16 slot with 10X strength for graphics card; EZ-Latch Click：

ASUS Hyper x16 Gen5 Card Supports Four NVMe Devices up to 512 Gbps for AMD and Intel® Platform RAID Functions

pcie 4 gpu in pcie 3 slot Since your device is PCIE , then slot switching into x8 mode, you get PCIE x8 mode PCIE card can not operate in PCIE

Are there existing , PCIE 5 to PCIE 4 converter, which makes full use of the PCIE 5 bandwidth ?

pcie 3 slot PCIe x16 Gen5 expansion backplane · 5x PCIe x16 Gen slots · 1x PCIe x16 Gen target slot · Optional bifurcation to support two PCIe x16

PCIe Base Specification Rev , , approved on 12 Mar 2020 show less Unoccupied Slot Power Hand-off State Clarification This ECN allows the