The new Cooler Master Silent Pro M 850 W is a good power supply, presenting a high efficiency up to 86.8% if you pull up to 80% from the labeled capacity (i.e., up to 680 W), voltages within specs and noise and ripple below the maximum allowed.

The highlight of this product is the presence of six independent cables using six/eight-pin connectors for video cards, allowing you to install up to three very high-end video cards on your system without the need of using any kind of adapter.

If you are looking for an 850 W power supply for a high-end PC, Silent Pro M 850 W is a very good option, providing an excellent cost/benefit ratio for this segment.