I’m looking for Chenbro RM41416 4U Backplane Assembly Set.
This is in fack 2x 2U Metal Backplane Assembly Sets that fits the SAS/SATA Backplane PCB’s 80H10321516A1.
I was searching to find what the part number is called but could nothing on the net.
My old job used Synnex as a vendor for a lot of things, and they are listed as an authorized Chenbro Dealer. I picked up a 4U Chenbro that housed a custom board. They were able to get me an IO Panel for the case to make it normal (e)ATX. You may reach out to them to see if they can get it for you.