SilentiumPC's entry into the high-end PSU market with the Supremo M1-700 is strong and worthy. This unit's strongest point is without a doubt its extremely high efficiency throughout its entire operational range, which makes it the PSU for users that consider PSU efficiency paramount. The PSU's other characteristics are quite good since it is based on a non-digital version of the high-end High Power Astro GD 750 W unit we already reviewed, although ripple suppression needs to improve on especially the 5VSB rail. The unit I had in my hands was a pre-production model, so I noticed a lot of ugly hand-made soldering jobs on its main PCB, but those are commonplace in models that are produced before the production line is stabilized. That said, High Power also only used high-grade electrolytic and polymer capacitors internally, along with high quality mosfets, so I don't think there will be any reliability issues with the final product, which would easily allow SilentiumPC to increase the provided warranty to five years. This product's most significant downside will probably be its limited availability as no one outside of Central Europe will find it anywhere for purchase. SilentiumPC will hopefully expand their retail channels to make their products more readily available to the rest of the European and, why not, American market, and soon. More competition is always welcome since it favors all of us consumers.

To wind up, the Supremo M1-700 is a decent choice if you can find it, want one of the most efficient PSUs currently available, and are, of course, ready to invest $129. It may not offer a fully modular design or the best ripple suppression in its high-end category, but is incredibly efficient with even ultra-low loads. The platform definitely has potential, and I hope High Power further improves on it in the near future.