The PSU mount for this unit would be the same as the other HL15 units. Both the motherboard and PSU mount to the rear of the server.
Since we cannot make the server any wider (as it needs to fit within standard rack dimensions), there is no additional space between the PSU and motherboard. As a result, both components will remain aligned in the same way, as they are both connected to the rear of the unit.
Please let us know if you have any further questions or need clarification on the design.