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The RS-450-ACLY follows the familiar design used by most 120mm fan PSUs. A nicely open honeycomb pattern grill covers most of the exhaust side, which sports a power switch and the AC input socket. Because it has auto-range input , no 110/220 VAC switch is needed. A blue LED fan is used.
Blue light... presumably to illuminate the interior of a windowed case.
There are no vents at all other than the exhaust grill.
The cover is fitted very tightly, suggesting high mechanical integrity. The interior is quite packed, with fairly small heatsinks. An interesting feature is a piece of black plastic wedged between the heatsinks, behind the center yellow-topped transformer. It seems to be there to act as a 90 degree angle deflector for airflow to be directed towards the transformer and the exhaust grill. It suggests that there must be a significant degree of back pressure for the fan airflow -- i.e., it bounces back towards the fan, reducing effective airflow and increasing turbulence.
Photo edited heavily to show airflow deflector behind transformer.
The fan is a Cooler Master brand dual ball-bearing, rated at 0.38A. This suggests high speed capability and noise.
Cables and Connectors
There are a total of seven quite long cable sets.
The longest cable is almost a yard.
The familiar 4-pin plugs have been replaced by a blue colored version with side tabs that make removing the plug much easier. Instead of the usual rocking side-to-side that's often necessary and totally awkward in tight spots after drives are installed, you only have to squeeze on both sides, and the tabs push against the mating connector to loosen off the plug. It works well.
Much easier to unplug: Just squeeze the sides.
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