The VGA Power is designed internally just like an ordinary switching power supply, although it differs from the standard ATX power supply, of course. There is only one output voltage, so there is no need for a group regulation choke. A line filter can be seen in the top part of the photograph above (three coils with capacitors in-between) and an active PFC coil (the leftmost one). In the bottom of the photo there is a power transformer lying on a side and a large high-voltage capacitor (it only looks so large from above – they had to use a capacitor with a big-diameter case due to the height limitations).

Diode packs of the output rectifier are installed on the largest heatsink. The other two heatsinks carry switch transistors of the main regulator and the components of the active PFC device. A small heat-spreader, actually a small strip of aluminum, is fastened on the diode bridge on the PSU’s input.

Most of the integral electronics, i.e. electronic chips, are placed on the reverse side of the PCB, so the power supply is not as simple as it looks when you view it from above. The VGA Power has its own standby source. In the ordinary ATX power supply it generates the +5V SB voltage for the mainboard. Here, it is used for the PSU’s own purposes.

Generally speaking, the VGA Power is not something simple. Its complexity isn’t much lower than that of standard computer PSUs.

The PSU’s front panel is highlighted with four blue LEDs at work. The highlighting is bright and I think it would be better if the LEDs were fully hidden in the case to highlight just the name of the device rather than to shine forward like four small electric torches as they do.