Seasonic S12-330 PSU, new sleeved version

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The fan hasn't changed.

The most important parts of the fan haven't changed: It is still a low noise, low speed, ball bearing fan from Adda. The only difference is the lack of RPM monitoring in the new revision, shown by the "1" in the suffix of the model number. Unless the fan controller is substantially different, we can expect that the quality of noise hasn't changed.


As mentioned, all of the cables are now sleeved and tend to be longer than in previous versions. The cables are no longer twisted, which may be how Seasonic could afford to extend them. A small amount of protection against EMI may have been lost, but few users are likely to notice the difference, since EMI is rarely a significant problem.

  • 21" cable for main 20+4-pin ATX connector
  • 23" cable for auxiliary 4-pin 12V AUX connector
  • 22" cable for 6-pin PCIe connector
  • 23" cable with two SATA drive connectors
  • 20" cable with two SATA drive connectors
  • 28" cable with three 4-pin IDE drive connectors with squeeze grips
  • 21" cable with three 4-pin IDE drive connectors with squeeze grips
  • 5" splitter from Molex to 2 × Floppy connectors

The additional connectors and increased cable length will be most appreciated by power users who actually need four SATA connectors or six IDE connectors. Unfortunately, the need to accommodate this limited market sector means that there are more cables that need to be neatly tucked out of the way in the minimalist systems preferred by silencers. The one exception is the PCIe cable, which will be greatly appreciated by gamers whose favorite 3D accelerator requires it, although such cards are often too hot to cool quietly.

The extra length is a less of a mixed blessing, since it will help solve compatibility issues with larger cases — like the Antec P180.

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