Athena Power AP-MFATX40P8 400 W Power Supply Review

Conclusions

The Athena Power AP-MFATX40P8 presented efficiency between 81.8% and 85.6%, voltages closer to their nominal values than required (three percent regulation) most of the time, and noise and ripple levels around half of the maximum allowed.

We were really happy to see that Athena Power fixed all issues we found with the 350 W version of this power supply.

The only “problem” with this power supply is its price. At around USD 80, it is expensive for a 400 W unit. However, we know how hard it is to build a high-efficiency power supply in a small form factor, as heat will always be the main issue. If you are building a small form factor (SFF) computer that requires a FlexATX power supply, and you are looking for a unit with above average efficiency, the Athena Power AP-MFATX40P8 is certainly a great option if you don’t mind its price. Keep in mind that cheaper FlexATX power supplies out there either don’t have the 80 Plus certification or have the standard (white) one.

Price is the main reason we are giving this unit our “Silver Award” instead of the “Golden.”