The specs of the ATX350F-C meet the ATX12V 2.0 requirements. It has two +12V lines with an allowable combined load of 23A (this is 2A lower than the recommendation for the typical 350W unit, but 1A higher than is recommended for the typical 300W unit) and a very moderate load capacity of the +5V and +3.3V rails (modern computers just don’t need much from them).

The output voltage ripple amounted to 55 millivolts on the +12V rail and 25 millivolts on the +5V rail at full load of 350W. There was both high- and low-frequency present. The latter is not a good fact, but the pulsation amplitude was two times below the acceptable maximum, so I can’t have any real complaints.

The cross-load diagram is generally the same as with In-Win’s PSUs: the +3.3V voltage is very stable while the +12V and +5V change greatly depending on load. They only violate the acceptable limits at a very strong load misbalance, though. Everything is going to be all right in a real computer, although the +5V is going to be 0.1-0.15V higher than it should be (to remind you: a deflection of 5% or 0.25V is the allowable maximum).

The PSU is equipped with an 80mm fan from Yate Loon. Products of that firm have gained a reputation of inexpensive, yet rather quiet fans. The speed is changed in a linear way from 1200 to 2700rpm, making this power supply, like the In-Win PSUs, average in terms of noisiness. The fan is barely audible at low speeds, but makes itself heard at 1800-2000rpm and higher. Its noise isn’t irritating, though.

The PSU is 76% efficient at maximum. It has a power factor of about 0.74 thanks to its passive PFC.

So, this power supply has performed expectably in my tests. I say “expectably” because I have already met and tested this platform from FSP under different names. PSUs based on it are stable and predictable, and the ATX350F-C doesn’t make an exception. Despite its manifest entry-level design it has good parameters, complies with the ATX12V 2.0 standard (something In-Win’s power supplies are yet to grow up to), and features problem-free operation. It’s not an exceptional product, but it will suit an office-class computer perfectly.