SilverStone has released a completely fanless 400 W power supply, thus producing absolutely no noise, using a high-end design. Can it survive our tests? Let’s see.

The reviewed power supply is manufactured by FSP. Keep in mind that other SilverStone power supplies models can be manufactured by Seventeam, Enhance and Impervio.

Because it doesn’t have a fan, its top panel is actually a huge heatsink, as you can see in Figure 1.

SilverStone Nightjar 400 W power supplyFigure 1: SilverStone Nightjar 400 W power supply.

SilverStone Nightjar 400 W power supplyFigure 2: SilverStone Nightjar 400 W power supply.

Nightjar 400 W is 6 19/64” (160 mm) deep, featuring active PFC, of course.

All cables use nylon sleevings, but they don’t come from inside the power supply, as you can see in Figure 2. The included cables are:

  • Main motherboard cable with a 20/24-pin connector.
  • One cable with two ATX12V connectors that together form an EPS12V connector.
  • One cable with two six/eight-pin auxiliary power connector for video cards.
  • Two SATA power cable with three SATA power connectors each.
  • Two peripheral power cables with three standard peripheral power plugs and one floppy disk drive power connector each.

The number of cables is more than perfect for a 400 W unit: it comes with two video card power connectors, while most 400 W units will come with only one.

All cables have 21 ¼” (54 cm) between the power supply housing and the first connector on the cable. On the video card power cable there is 5 ¾” (14.5 cm) between connectors, on the SATA power cables there is 5 7/8” (15 cm) between connectors and on the peripheral power cable there is 9 5/8” (24.5 cm) between the first and the second connector but 5 7/8” (15 cm) between the second and the third connector. All wires are 18 AWG, which is the correct gauge to be used.

SilverStone Nightjar 400 W power supplyFigure 3: Cables.

Now let’s take an in-depth look inside this power supply.


Gabriel Torres is a Brazilian best-selling ICT expert, with 24 books published. He started his online career in 1996, when he launched Clube do Hardware, which is one of the oldest and largest websites about technology in Brazil. He created Hardware Secrets in 1999 to expand his knowledge outside his home country.