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Seasonic X-Series 460W Fanless Power Supply Review

The X-Series 460W Fanless Power Supply is another quality design from Seasonic, which we have seen used in other partner products such as the Silver Power SP S460FL a couple of months ago.

The bundle is particularly strong, specifically the modular cabling with dual pouch storage bag. Seasonic also bundle a plethora of felt and plastic cable ties to ensure the system build is as tidy as possible. We aren’t sure that the end customer will get the Seasonic branded Haribo chewy sweet packets, but they gave us a smile when we opened the box.

The modular cables are high grade, with sleeving to enhance the appearance inside a quality system build. The 4+4 pin CPU power cable runs to 650mm and will be ideal for the largest of chassis environments.

The power supply is well protected during shipping, thanks to the sculpted foam and soft, black felt bag. The paint work is excellent, and the modular cable connectors are nicely laid out and clearly labelled.

Technically, the design is exceptional. Noise suppression is as good as we have seen, peaking at just 25mV on the +12V rail at full load. The +3.3V and +5V output are just as impressive, peaking at 10mV/15mV respectively.

The fanless operation and pure modular design makes this power supply ideal for a media center build, or high grade, silent office machine. The excellent efficiency performance also ensures that the system can be left on 24/7 without excessively draining power at the socket.

This is a specialised design and there will be always be a price premium, you can buy it from Scan for £116.95 inc vat.


  • Great finish.
  • Strong bundle.
  • Good cabling.
  • Pure modular design.
  • Silent.
  • Technically very capable.
  • High Efficiency.


  • Expensive.

Kitguru says: Seasonic rarely disappoint, and this particular design will find a home in many a high grade media center and server system.

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Rating: 9.0.

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