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The NZXT H9 Flow (2023) is a white gaming PC featuring a glass side panel, RGB cooling fans, strong GPU cooling, a visible graphics card, and a CPU cooler showing temperature—all highlighted with purple and blue lighting.
The NZXT H9 Flow (2023), shown from above, features a white perforated top panel for ventilation, a power button, two USB ports, and subtle internal lighting that highlights its advanced GPU cooling.
The NZXT H9 Flow (2023) computer case in white features a transparent side panel, an empty interior, three front cooling fans, and one rear fan to boost GPU cooling, with open spaces for flexible and optimal thermal performance.
The NZXT H9 Flow (2023) is a white PC case with enhanced thermal features, perforated top and side panels, a glass side panel, and power plus USB ports on the front top edge, displayed against a black background.
The NZXT H9 Flow (2023) is a white computer case with open side and top panels, revealing multiple cooling fans and a spacious interior designed for superior thermal performance and efficient GPU cooling.
The NZXT H9 Flow (2023) computer case is shown open and empty, featuring multiple fan mounts, drive bays, and compartments for optimal GPU cooling and advanced thermal performance.
The NZXT H9 Flow (2023) gaming PC in black features a glass side panel displaying RGB-lit cooling fans, advanced RTX 3080 GPU cooling, and a circular CPU cooler showing 32°C—all glowing with purple lighting.
A top-down view of the NZXT H9 Flow (2023) black case shows a perforated top panel, cooling fans with purple LED lighting for improved GPU cooling, and front ports and buttons on the right.
The NZXT H9 Flow (2023) is a black, rectangular PC case with a mesh top for better cooling, front I/O ports with two USBs and a power button, plus a glass side panel—all shown from an elevated angle against a black background.
The NZXT H9 Flow (2023) computer case in black is shown with its glass side panel open and top panel removed, highlighting its cooling fans, empty component slots, and design optimized for superior GPU cooling.
The NZXT H9 Flow (2023) is a black computer case with an open side panel, internal mounts, cooling fans for improved GPU airflow, cable management features, and ventilation areas.
Side view of an empty NZXT H9 Flow (2023) black computer case with a glass panel, featuring three large cooling fans on the right, cable management grommets, and a spacious interior for optimal GPU cooling and superior thermal performance.

H9 Flow (2023)

4.7
Rated 4.7 out of 5 stars
4.7 Stars (179 Reviews)

Dual-Chamber Mid-Tower Airflow Case

Color:White

Overview

The H9 Flow is designed to cool off powerful GPUs with its expansive thermal capabilities, featuring the capacity for ten fans and numerous 360mm radiator mounting options and the perforated top panel takes cooling even further.

  • Unique uninterrupted glass panel for a clear view of the interior
  • Intuitive cable management and dual chamber design
  • Room for ten fans or three 360mm Radiators
  • Perforated top panel for enhanced cooling
  • Direct airflow to the GPU for handling high-powered components
  • Enhanced experience with other products from the NZXT ecosystem
  • Includes four F Series 120mm Quiet Airflow fans (Case Version)
A white computer case with a transparent side panel, showing three cooling fans and a purple bar labeled 435mm indicating the maximum graphics card length supported inside the case.

GPU Capacity

The H9 Flow has 435mm of GPU clearance, offering room for the latest NVIDIA 40 Series and AMD 7000 Series cards.
White computer case with labels showing possible fan placements: top (3x120mm or 2x140mm), side (3x120mm), bottom (3x120mm or 2x140mm), front (3x120mm or 2x140mm), and rear (1x120mm).

Fan Capacity

The H9 Flow has room for 10 fans. With the capacity for 3x120mm fans on the side, 3 x 120mm or 2x140mm on the top and bottom, and 1 x120mm on the rear.
Side view of a white computer case showing maximum radiator sizes: 360mm at the top, front, and bottom, and 120mm at the rear. Three fans are mounted vertically at the front.

Radiator Capacity

The H9 Flow has room for up to a 360mm radiator on the top, bottom, or side, and up to a 120mm radiator on the rear.
Tech Specs
Motherboard Support
Mini-ITX, Micro-ATX, ATX
Enclosure Type
Mid-Tower
Case Material
SGCC Steel, Ultra-clear Tempered Glass, Dark Tinted Tempered Glass (Black only)
Height
495mm (With Feet)
Width
290mm
Depth
466mm
Weight
12.1 kg
Max CPU Cooler Clearance
Up to 165mm
Max GPU Clearance
Up to 435mm
PSU Clearance
200mm
Cable Management
91mm
USB 3.2 Gen 1 Type-A
2
USB 3.2 Gen 2x2 Type-C (20 Gbps)
1
Headset Audio Jack
1
Standard
7
Vertical
0
2.5"
4+2
3.5"
2
Side
3 x 120mm
Top
3 x 120mm / 2 x 140mm
Bottom
3 x 120mm / 2 x 140mm
Rear
1 x 120mm
Filters
All Air Intakes
Side
Up to 360mm with Push/Pull
Top
Up to 360mm
Bottom
Up to 360mm
Rear
Up to 120mm
Model
F120Q (Case Version)
Speed
1200 ± 240RPM
Airflow
62.18 CFM
Static
1.05 mm - H2O
Noise
25.1 dBA
Fan Connector
3-pin DC
Warranty
2 Years
Model Number
CM-H91FW-01
UPC
810074842495
EAN
5056547202419
Model Number
CM-H91FB-01
UPC
810074842488
EAN
5056547202402
4.7
Rated 4.7 out of 5 stars
Based on 179 reviews
93%would recommend these products
AI Reviews Summary
Customers say this computer case offers exceptional cable management and spacious interior. Many reviews highlight its clean, sleek design with glass panels that showcase components effectively. The dual-chamber layout makes organization straightforward, and users appreciate the easy access to all parts. While most find the build quality excellent, some mention challenges with the back panel installation. Common feedback includes praise for the roomy interior that accommodates large components, though a few note space limitations with certain graphics cards. Reviews are mixed on airflow performance, with most finding it sufficient while others report temperature concerns.
Total 5 star reviews: 149 Total 4 star reviews: 17 Total 3 star reviews: 6 Total 2 star reviews: 5 Total 1 star reviews: 2
Write a Review (Opens in a new window)
179 reviews
  • E
    Edwardo
    Reviewing
    H9 Flow (2023) White
    I recommend this product
    Rated 5 out of 5 stars
    Aug 26, 2025
    5 Stars

    Very good

    Was this helpful?
  • S
    silly
    Reviewing
    H9 Flow (2023) White
    I recommend this product
    Rated 5 out of 5 stars
    Aug 3, 2025
    5 Stars

    Beautiful case, insane airflow and looks very cool.

    Was this helpful?
  • RR
    Russell R.
    Verified Buyer
    Reviewing
    H9 Flow White
    I recommend this product
    Rated 5 out of 5 stars
    May 20, 2025
    The "Waaaaiting is The Hardest Part".

    Right now it is unpacked and is sitting on my desk waiting for all the other pieces to arrive, but it looks GREAT! The build quality is excellent. Lots of room. Even the top panel comes off! I should be able to access anything. This is my second NZXT case - the first one is almost 10 years old. Can't wait to see the new one filled with LIGHT and ENERGY! I'm 72 and enjoying learning about things like ARGB, M.2 storage, CPU coolers and all the rest. You can teach an old IT guy new tricks!

    Was this helpful?
  • AB
    Allen B.
    Verified Buyer
    Reviewing
    H9 Elite Black
    I recommend this product
    Rated 5 out of 5 stars
    May 20, 2025
    H9 Elite

    The case looks amazing the duel chamber makes cable management a breeze. It was easy to work in and make the build look clean. It checks all the boxes for me.

    Was this helpful?
  • HM
    Hector M.
    Verified Buyer
    Reviewing
    H9 Elite Black
    I recommend this product
    Rated 5 out of 5 stars
    May 20, 2025
    nzxt

    great case with good cable management, a lot of space at the back, and good design.

    Was this helpful?
  • JK
    Jeffrey K.
    Verified Buyer
    Reviewing
    H9 Elite Black
    I recommend this product
    Rated 4 out of 5 stars
    May 13, 2025
    Nice big sleek chassis with all the trimmings

    Love the shape and the visual appeal while having access to anything you might need. good cable management and very solid build.

    Was this helpful?
  • CH
    Chad H.
    Verified Buyer
    Reviewing
    H9 Flow White
    I recommend this product
    Rated 5 out of 5 stars
    May 5, 2025
    First case made cable management a BREEZE

    Stop stalling. Buy it. You'll ahve zero regrets.

    Was this helpful?
  • R
    ryan
    Flag of United States
    Reviewing
    H9 Elite
    Rated 3 out of 5 stars
    Apr 26, 2025
    Great case - if you don't use RTX 5000 series

    very nice material. solid build. there is not enough space for e-atx but thats my fault for not measuring. my main issue with this is there is not enough space for the rtx 5080. i'm using a MSI SOC Suprim and when the card is installed it basically comes within 1 inch of the glass without the power cable installed and i'm not comfortable bending a 600w cable 90d AT the connector site just to fit the glass on. i'm going to just have to eat the cost as i can't return it and find something else.

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  • A
    ARX63
    Flag of India
    Reviewing
    H9 Elite
    I recommend this product
    Rated 5 out of 5 stars
    Apr 14, 2025
    The best experience this is my first gaming pc

    Great cabinet love my build!!

    Was this helpful?
  • D
    Dave
    Flag of United States
    Reviewing
    H9 Elite
    I recommend this product
    Rated 5 out of 5 stars
    Mar 23, 2025
    Great Tower

    I never thought I would purchase a tower like this, but after getting it all set up. I also added a Kraken Elite, I also added 6 additional F120RGB fans to the case.

    If I had one complaint I wish the Kraken came with the F120RGB fans

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