Symptom
Nexus 9364C-GX NX-OS mode Hardware Installation Guide: https://www.cisco.com/c/en/us/td/docs/switches/datacenter/nexus9000/hw/n9364c-gx-hig/guide/b_c9364c-gx-nxos-mode-hardware-installation-guide/b_c9364c-gx-nxos-mode-hardware-installation-guide_appendix_0111.html?bookSearch=true#reference_B5234A4D0A7B48E7882B5E174C8B1A0F
mentions that no DC Power cable is shipped with the device and gives no information as to which power cable to order with it.
In contrast, previous generation Nexus 9364C-FX2 came with a connector already pre-installed so any cable could be used
Conditions
Nexus 9364C-GX NX-OS mode Hardware Installation Guide > Power Cable Specifications > DC Power Cable Specifications
Workaround
NCS5500 documentation showcases a similar PSU: https://www.cisco.com/c/en/us/td/docs/iosxr/ncs5500/hardware-install/b-ncs5500-hardware-installation-guide-fixed-port/b-ncs5500-hardware-installation-guide-fixed-port_chapter_011.html#Cisco_Concept.dita_ddb665f6-3f65-45dd-9274-3dc831857448
and references that the PWR-2KW-DC-CBL power cord should be used.
Further Problem Description
The connector type of the PSU appears to be this: Amphenol Industrial reference C10-752157-000 for 8-AWG wire, but it should be verified