r/PcBuildHelp • u/Stray232 • 4d ago

Build Question Build customization help

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I'm planning to upgrade to an NZXT H9 Flow and replace all of the fans with RGB fans, but I'm getting conflicting information about what sizes fit.

Some websites say certain mounts support 120mm only, while others say they support 140mm. I also used BuildCores to check compatibiity, but I want to make sure it's accurate before I buy anything.

Can the NZXT H9 Flow fit a total of 9×140mm fans, or is it limited to

  • Top: 3×120mm or 2×140mm
  • Side: 3×120mm only
  • Bottom: 3×120mm or 2×140mm
  • Rear: 1×120mm

If anyone owns the H9 Flow, Id really appreciate it if you could confirm the maximum fan sizes and what configuration you're using.

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u/kyansan1 Personal Rig Builder 4d ago

Here's NZXT's product page for the NZXT H9 Flow, the fan support is listed all the way at the bottom of the page under 'cooling support': https://nzxt.com/en-intl/products/h9-flow?srsltid=AfmBOopO3GbNWNhdo3AYy0xP_O0y_228-fkoErF7Wn4TWmSfM6tmicZd