What is the correct input voltage of PERST# from PCIe slot?

PCI Express® CEM Interposers pcie cem slot These interposers assure reliable data transmission while providing 100% capture of all data traffic flowing through the PCIe CEM slot interface Connecting pcie x16 expansion slot The card is compliant with the PCIe CEM 0 Specification as a dual-slot, standard height card The card with the passive cooling enclosure is

pcie 4 nvme in pcie 3 slot PCIE G5 CONN,36P,ASSY,SLOT CUT,G, 2371899-1, PCIE G5 CONN,36P,ASSY,SLOT CUT,G, 7; 11, Board Guide, Locking Ramp, Solder Retention, 0