DELL 130 W AC adapter screw mount holder

Model for Power supply can be found here: DELL 130 W AC Adapter LA130PM190
The PSU can be mounted in any orientation. Be careful, the holder halves are mirrored and you cannot simply 3D print the same file twice.
LA130PM190

Credit: IEC C6 Socket Panel Mount
Credit: Connector - 3 Prong IEC 320 C-5