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The iXtrema is pictured above. It includes a standard black power cord, and a brief instructional booklet with information about warranty, etc. The package included with the SilenX is pretty spartan-- in fact, mine didn't even include a box, but I am not sure if retail versions do or not. Nevertheless, let's take a few close ups.
The PSU is rated at:
3.3v: 30a
5v: 32a
12v: 18a

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Pictured is the front of the PSU, which faces inward towards the front of your case. It contains the same passive ventilation as the Zalman did. As the SilenX is a single-fan design to conserve on noise, the holes are made so that the single exhaust fan has a source of intake to cool the internals of the PSU.

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Here is the back of the PSU. Again, the standard layout-- power plug, fan with removable guard, and the on/off switch. Make a quick note, though, of the rubber caps on the fan screws, which is probably used to absorb vibration from the fan. Not that there's much vibration anyway, but SilenX is dead-set on getting every last little bit of noise note that this particular model is Passive PFC. However, SilenX has an Active PFC version for $10 more, on their website.
Moving on to the power connectors...it has 6 4-pin Molex connectors, 2 floppy connectors, 2 dedicated Serial ATA connectors (these are hot-swap compatible), and a sleeved ATX connectors, along with the 6 pin connector nobody uses ( ), and the P4 connector. The longest that any single Molex connector extends is 33 inches. As a general rule, though, the connectors in this case are "just enough", not anything extraneous, and should be great for smaller cases.

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Here is a close up of the Molex connectors. Note how they are interestingly blue, and they can be pressed in on the sides to easily release from a tight-fitting female connector. Ever had to spend 5 minutes yanking out a Molex connector from a fan? Yep, that's what SilenX is here to prevent (what good is a silent PSU if you're yelling and swearing at your computer's Molex plugs?).

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One other cool think I noticed about this PSU is that the ATX connector is more flexible than most PSUs. The circumference of the ATX cord is smaller than that of the PurePower PSU... this results in a thinner and more manageable ATX connector.
Let me also make a quick note that this PSU has adjustable potentiometers contained inside, for fine-tuning of your voltage.
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