Summary: We were very curious to test a power supply from Akasa, since we’ve never tested anything from them before.
We retested this product on 06/24/2009 with our new precision wattmeter and efficiency showed to be above 80% only if you pull between 200 W and 300 W from this power supply; with any other load efficiency was below 80%.
Conclusion: After testing the PaxPower 460W in our specially designed load testing device I feel much more confident about Akasa's quality. It came through with flying colors, providing stable power and good voltages. When the fan is running in it's low speed it is near-silent, which would be the case for about 99% of the PCs out there. However once it reaches near it's peak rated output the fan will spin up full throttle to keep itself cool.