SilverStone Nightjar NJ700 700W Fanless Power Supply Review

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SilverStone NJ700

SilverStone is a company best known for its high-quality cases but their product lines extend into other components such as cooling, power supplies (of various model lines that range from 300W to 1350W in DC output), fans, and storage solutions. Silverstone has built up this impressive product repertoire since its founding in 2003. For this review, we are looking at the SilverStone Nightjar NJ700 700W Fanless PSU model with product number SST-NJ700 in the Nightjar series, which is produced in conjunction with Seasonic.

Seasonic is one of the older companies producing consumer power supplies having been founded in 1975 and entering the PC power supply production market in 1980. During that more than 40 years as a company, Seasonic has cultivated lines of power supplies that are today some of the standard-bearers for efficiency and quiet computing. This focus, and its reputation for quality, has to lead to an explosion in production as Seasonic can be found providing OEM services on various model lines for Antec, XFX, Corsair, PC Power and Cooling, and of course under its own Seasonic brand.

SilverStone NJ700 700W Fanless Power Supply 0dba Fan-less banner

The Strong Silent Type Goes To The Gym

The SilverStone NJ700 is certainly not the first power supply we have seen from SilverStone nor it is the first fanless power supply we have seen. However, it is the largest capacity fanless unit we have seen.

Indeed, today, we see the NJ700 is coming in at 700W which is one of the larger fanless units on the market. That might worry us some if it was from a brand other than SilverStone. But, with the general pedigree of SilverStone fanless power supplies, and SilverStone’s ingenuity, over the years we feel much more confident that this unit might actually tick all the right boxes and deliver for us today. Before moving on to see if the NJ700 can indeed deliver, what does SilverStone have to say about this unit:


80 PLUS Titanium 700W Fan-less power supply

■ Fan-less thermal solution, 0 dBA acoustics

■ High quality construction with all Japanese capacitors

■ 100% modular cables

■ Strict ±2% voltage regulation and low ripple & noise

■ 24/7 continuous power output with 45℃ operating temperature

■ Class-leading single +12V rail

■ PCI-E 8pin and PCI-E 6pin connectors support

Let’s move on now and see what we can expect when a user purchases the SilverStone NJ700 power supply in retail in terms of documentation, accessories, cable count, rail layout, output characteristics, and general build quality.

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Paul Johnson
Paul is a long time PC hobbyist and tech enthusiast having gotten his start when he broke his first C64 quickly followed by breaking his first IBM XT. Most notably however, for 12 years, he served as the Power Supply Editor for one of the truly early, groundbreaking, and INDPENDENT PC enthusiast sites ([H]ardOCP) until its mothballing in April of 2019. Paul now brings the same flair and style of his power supply reviews to The FPS Review.

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