This Module is currently available.
Matte Black Blank PCB Blanks from Control with screw holes outlined in gold for Eurorack format. Reverse side is without the Control logo for mounting branding free.Blank/blind panel select drop down from above to choose. To be used for DIY modules and as a safety fill in to a case. Screws not included.
Height: 3U
Materials: Matte Black PCB
https://www.ctrl-mod.com/collections/cases/products/black-blank-pcb-panels
These merchants probably sell this module. Huh?
Control Blank PCB Panel - 16HP