babatingWhy not label it, as a SFX PSU, since, thats , actually downscaled ATX size PSU, I don get it

ATX PS/2: Standard dimension for this form factor is: 150mm (W) x 86mm (H) x 140mm (D)
SFX: Standard dimension for this form factor is: 125mm (W) x 51.5mm (H) x 100mm (D). There are variations for this form factor that have longer depth such as SFX-L.
ATX PS/3: This form factor is compatible with ATX PS/2, the only difference is the shorter depth. Many have also called this the “Micro ATX” PSU form factor, which is incorrect as no such standard exists for power supplies.
Standard dimension for this form factor is: 150mm (W) x 86mm (H) x 100mm (D) The depth for this form factor may vary from 100mm up to 139mm