On the box of their Luxurae line of power supplies, SilenX claims to manufacture "the world's quietest power supplies". Sheer hype? Not when the power supplies in question are fanless. That's right, SilenX's Luxurae power supplies are passively cooled, so they should theoretically be completely silent (zero decibels), or at least a whole lot quieter than a fanned PSU.

However, how stable are these Luxurae power supplies, and how much overclocking room do they allow?

Features

The Luxurae features nine 4-pin molex, two floppy, two SATA, and the standard ATX power and P4 connectors. The connectors aren't standard white molex connectors, but blue, easy release connectors which are useful when you've got enough leverage to press down on their round release tabs. The ATX, P4, and AUX connectors are bundled in braided black sleeving as well.

Here are the Luxurae’s specifications from SilenX’s website:

• Dimensions: 150mm x 86mm x 140mm
• Connectors: 6 molex (4-pin), 2 floppy, 2 S-ATA
• Input: 115/230V @ 50/60 Hz
• Output: 400W
• 3.3V - 40.0A
• 5.0V - 36.0A
• 12.0V - 18.0A
• <3% Load Regulation
• <1% Line Regulation
• Efficiency: 80% under load
• Over Voltage Protection: 3.3V/4V 5V/6V 12V/14V
• Over Power Protection: 105%~150% of max load
• High Quality Construction
• Highly Efficient Passive PFC Circuit

The Luxurae also has an integrated Voltage Control knob located next to the power switch. This knob allows the 5V and 12V rails to be adjusted, which is a very useful feature for overclockers.

The Luxurae really is constructed with obvious care and attention to detail. There are no sharp edges, fragile feeling connectors, switches, or knobs. The sleeving application on the ATX, P4, and AUX cables is well done, and the overall product is polished and well-finished.

The Luxurae is a heavy power supply (about 2.3Kg, or 5 pounds). Heavy is generally good for PSUs, and the Luxurae is extra-heavy due to its large internal and external heatsinking and heatpiping needed for passive cooling.