Specifications and Packaging

The SilverStone Nightjar 500W Fanless power supply supports the ATX12V v2.3 and EPS12V standards and is rated for a combined, continuous output power of 500 watts at 25°C. As illustrated in the following table, the max output is de-rated for operating temperatures above 25°C and depending on whether the AC line voltage is 115 VAC or 230 VAC. SilverStone strongly recommends having “forced air cooling” available for the power supply to operate reliably at higher loads and elevated operating temperatures. What this means is you must have good case cooling with airflow over the outside of the power supply (top finned heatsink especially).

(Courtesy of SilverStone)

Instead of using a traditional fan, the Nightjar 500W PSU incorporates a large, passively cooled heatsink on the top surface to dissipate waste heat. The ST50NF features a single +12V output that can deliver up to 38A (456W). The PSU includes universal AC line input (automatically adjusts the AC line voltage) and active PFC, which makes the unit more environmentally friendly to the local power grid.

Specifications (courtesy of SilverStone)

Packaging and Parts

The Nightjar 500W Fanless PSU arrived securely packed inside a large retail box highlighting the unit’s features and specifications. In addition to the power supply the box also contains a power cord, mounting screws, several Velcro cable wraps, and a User’s Manual.


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