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HomePC CasesNZXTNZXT H9 Flow
Global PC CasesNZXT H9 Flow — front
NZXT

NZXT H9 Flow

Mid tower • 435 mm • 4 included

Mid towerSize
435 mmMax GPU
4 includedFan
KACBU

Should I buy it?

NZXT H9 Flow
CONSIDER
    Great choice if these matter:
    • Showcase builds that want included airflow out of the box
    • Dual-AIO or custom-loop layouts using multiple 360 mm mounts
    • White-themed builds around the white version
    Watch out for:
    • Glass front means airflow comes from the side and bottom, not head-on
    • The wide dual-chamber footprint needs real desk space
    Regret riskLOWlimited data
    Main risks
    • Glass front means airflow comes from the side and bottom, not head-on
    • The wide dual-chamber footprint needs real desk space
    • Panoramic glass demands tidy cabling — mistakes are on permanent display
    • Heavier than conventional mid-towers once glass and fans add up
    The risk level is computed from the release date and verified weaknesses. The confidence score appears only once enough owner reports exist.
    Alternatives
    Corsair 4000D Airflow
    Lian Li O11 Dynamic EVO
    This box relies only on verified specs, the release date and editorial assessment; owner reports join them as they come in. We do not predict prices.
    ClearanceAirflowLaunchSpecificationsFAQAlternatives
    Clearance Allowances

    What fits inside?

    GPU length, cooler height, and radiator support — three critical checks before assembly.

    CLEARANCE ALLOWANCES

    Parts fit in millimeters, not on paper.

    435 mm GPU

    435 mm — Maximum GPU length · 165 mm — Maximum cooler height · Up to 360 mm on top, bottom, or side; 120 mm at rear — Radiator support

    435 mm165 mmUp to 360 mm on top, bottom, or side; 120 mm at rear
    435 mmMaximum GPU length
    165 mmMaximum cooler height
    Up to 360 mm on top, bottom, or side; 120 mm at rearRadiator support
    Airflow

    Can it breathe?

    Fans included in box and maximum fan capacity.

    AIRFLOW

    The case is the cooling ceiling for every component inside.

    4 included Fan

    4 included — Fan included in box · Up to 10 fans — Maximum fan capacity

    4 includedUp to 10 fans
    4 includedFan included in box
    Up to 10 fansMaximum fan capacity
    Who Is It For?

    Where does it stand out?

    A usage guide built from the specs and the editors' tags; not a test result.

    Design

    Showcase builds that want included airflow out of the box

    Good fit
    Dual-AIO or custom-loop layouts using multiple 360 mm mounts

    Good fit
    Design

    White-themed builds around the white version

    Good fit
    Editorial Analysis

    Strengths and points to consider

    The Kacbu editors' assessment of the specifications the maker publishes. We do not test devices ourselves, so nothing here is a measured result. Anything taken from an independent review is shown with its publication and date in the Press section.

    Strengths based on the specs
    Four included fans means the showcase layout breathes on day one, unlike fanless rivals
    Three 360 mm radiator positions support serious liquid-cooling plans
    435 mm GPU clearance takes any consumer card
    Dual-chamber layout hides cables and the PSU behind the tray
    The white version is one of the cleanest all-white frames on the market
    Things to consider
    Glass front means airflow comes from the side and bottom, not head-on
    The wide dual-chamber footprint needs real desk space
    Panoramic glass demands tidy cabling — mistakes are on permanent display
    Heavier than conventional mid-towers once glass and fans add up
    Historical Product Info

    Official launch details

    Instead of tracking today's retail price, Kacbu keeps the product's official launch information as a reference.

    AnnouncedJanuary 13, 2023

    The manufacturer's official announcement date.

    Design🇺🇸 United States
    Manufacturing🇨🇳 China

    NZXT is a US company headquartered in Los Angeles; production runs in China.

    This is not the current retail price — it shows the product's historical, official launch information.
    Specifications

    NZXT H9 Flow specifications

    Click a linked value to see other products that share that same spec, and leave a comment on that spec.

    General

    Design
    Dual chamber, curved tempered glass
    Family
    H9
    Manufacturer
    NZXT

    Form Factor

    Size Class
    Mid tower
    Motherboard Support
    E-ATXATXmATXMini-ITX

    Clearance Allowances

    Max GPU Length
    435 mm
    Maximum Cooler Height (mm)
    165
    Radiator Support
    Up to 360 mm on top, bottom, or side; 120 mm at rear

    Cooling

    Maximum Fan Support
    Up to 10 fans
    Included Fans
    4 included

    Ports

    Ports
    1× USB-C 3.2 Gen2, 2× USB-A 3.2 Gen1, combo audio

    Body and Material

    Colours
    Black / White
    Side Panel
    Tempered Glass
    FAQ

    The most common questions about this product

    What the numbers on the spec sheet actually mean in day-to-day use.

    Does the NZXT H9 Flow come with fans?
    Yes — four fans are pre-installed, which sets it apart from showcase rivals that ship with none.
    Which motherboards fit the H9 Flow?
    Mini-ITX, mATX, ATX and E-ATX boards up to 277 mm wide.
    Where do radiators mount in the H9 Flow?
    Top, bottom and side each support up to 360 mm, with a 120 mm rear position — up to ten fan mounts in total.
    How long can the GPU be?
    Up to 435 mm — clearance shrinks if a thick bottom radiator sits under the card, so plan the loop first.
    Shared Hardware

    Products that share this hardware

    This product's standout specs. You can jump to other models that use the same value.

    Size ClassMid tower9 more productsMotherboard SupportATX7 more productsMotherboard SupportmATX3 more productsMotherboard SupportMini-ITX10 more productsMotherboard SupportE-ATX6 more products
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