Review: NZXT H6 Flow chassis

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We’re checking out the NZXT H6 Flow, an airflow-oriented mid-sized ATX tower PC chassis. The last chassis from NZXT we could check was the H9 Elite, from the high-end of this manufacturer’s offer. The mid-tier series presents a unique fan setting positioned at an angle for great (mainly air) cooling capabilities. The H6 series is a dual-chamber mid-tower chassis with a 51.8 l volume (quite a lot). It combines the best elements from H5 Flow (compact size) and H9 Flow (glass panels and airflow patterns). The looks are attractive; it resembles the Lian Li O11 Dynamic and other “aquarium-like” chassis that came to the market in large numbers. We’ll find the three 120 mm fans, one (F120Q) at the front-right, non-RGB, with a 3-pin connector and max 1200 rpm (62.18 CFM and 25.1 dBA). Instead of having these fans take air from a sharp 90-degree angle, you can find a 45-degree panel, which should allow better airflow, especially for the GPU area. This time, the tempered glass contains two wraparound pieces.


If you want more focus on the bling, there’s NZXT H6 Flow RGB.


 There are two color versions:

  • Matte Black (the one reviewed)
  • Matte White

The exact dimensions are 435 × 287 × 415 (L×W×H) in total; it’s 51.8 l of volume, so that’s in the mid-range of the mid-tower chassis. The H6 FLOW supports up to ATX (and uATX and mini-ITX) motherboards – there’s no E-ATX compatibility (but that shouldn’t be an issue). According to the specs, one 3.5” or two 2.5” drives are supported. On the front, you will find the following ports:

  • USB 3.0 x 2,
  • USB 3.2 Type-C x 1
  • Headset Audio Jack
  • Power button

The NZXT H6 FLOW provides many cooling options, supporting radiators

  • 360 mm at the top
  • and 120 mm at the back.

It’s possible to mount:

  • up to three 120 mm fans at the front-right (3x F120Q bundled),
  • three 120 mm or two 140 mm at the top
  • two 140 mm at the bottom
  • one 120 mm at the rear

You also get seven expansion slots. There are wide cable channels and straps for better cable management The top and side panels are tool-less.


You can use CPU air coolers with a max height of 163 mm / 6.42 in (which should fit most models but not all). The GPUs can measure up to 365 mm / 14.37 in in length. The PSU shouldn’t be longer than 200mm / 7.87 in. You get 91 mm / 3.58 in for the cable management. The price is now 109.99 USD. The NZXT H6 Flow RGB variant costs 134.99 USD. Will the H6 Flow be worth that price? First - let’s check out the specs and features of this chassis.

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