Seventeam ST-620PAF is an honest mainstream power supply. It has two disadvantages. First, efficiency, which is only decent if you pull between 40% and 60% from its labeled capacity (i.e., between 248 W and 372 W). The second drawback is the reduced number of cables: only two power cables for video cards using six-pin connectors and only four SATA power connectors.

The reviewed power supply can really deliver its labeled power at high temperatures, provide very stable voltages, very low noise and ripple levels (except on -12 V) and will shut down if you try to pull more than it is capable of delivering.

If you are aware about its drawbacks it can be a good option, however if you are really worried about getting a good efficiency with any load pattern you should pay more and go with Enermax ECO80+ 620 W.