Hardwarecanucks posted a review of the Tagan 2-Force II 600W Power Supply

The Tagan 2-Force II 600W power supply has a whole lot going for it; it has a good number of connectors and it performed above and beyond the call of duty in nearly all of our tests. It was extremely gratifying to see a power supply which is not 80Plus certified competing in the efficiency department with power supplies that have the certification. This unit also exhibits good performance in the voltage regulation and ripple suppression tests where it held its own against its closest competition. All of these things are huge benefits for the 2-Force II, yet there are a few things holding back this power supply from being perfect.

Tagan 2-Force II 600W Power Supply Review