SilenX is one of the big names in the North American PSU market due to the one thing you might imagine they have going for them. They have one of the quietest PSU's on the market for the consumer PC, just as their name suggests.
SilenX has gone for a no fills approach to the 350 watt model. The case is a standard steel alloy colour, so it really just is your run of the mill looks here. Cooling follows the old standard which is a single 80mm fan placed at the back to extract the heat from the PSU from within the case. No additional fans are used. The 80mm unit is thermally controlled in that it speeds up depending on the temperature inside the PSU casing.
SilenX hasn't put any additional frills on its cables at all either. The unit follows the Intel ATX 2.03 standard with the 20 pin ATX power, 4 pin CPU voltage, six of the 4 pin Molex HDD connectors and two FDD Molex connectors which is quite standard for a 350 watt PSU.
Under the hood is where you start to see why SilenX gets its name. For a 350 watt unit, it has the biggest arrangement of heatsinks, allowing the unit to spread heat into the air much more efficiently, allowing the unit to run the fans at lower speeds, since the components don't heat up nearly as much as traditional units.
SilenX give the following specifications of its 350 watt unit:
+3.3v Rail: 30A
+5v Rail: 36A
+12v Rail: 16A
-12v Rail: 0.8A
-5v Rail: 0.6A
+5vSB Rail: 2A
Maximum Rated Output: 350 Watts
We can see that SilenX is able to give slightly better results than the Vantec at the same wattage, and with a much more silent feeling to it, SilenX is a slightly better choice at this stage in the game.
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