NZXT H9 Flow Dual-Chamber ATX Mid-Tower PC Gaming Case CM-H91FW-01 – High-Airflow Perforated Top Panel Tempered Glass Front & Side Panels 360mm Radiator Support Cable Management White
£101.03
Price: £101.03
(as of Jun 02, 2025 03:11:14 UTC – Details)
From the manufacturer
Product Dimensions : 46.6 x 29 x 49.5 cm; 12.1 kg
Date First Available : 12 Jan. 2023
Manufacturer : NZXT
ASIN : B0BJHHPCQL
Item model number : CM-H91FW-01
Guaranteed software updates until : unknown
CLEAR VIEW: Seamless glass across the front and side panels gives your build’s components the undivided attention they deserve.
HIGH-PERFORMANCE AIRFLOW: Perforated top and side panels direct filtered air through the case to cool down components and enhance performance.
DUAL-CHAMBER DESIGN: Cables, storage, and PSU are separate from other components to maintain a clean look and maximize airflow to the GPU.
SIMPLIFIED BUILDING: Spacious interior with intuitive cable management, a dedicated SSD wall panel, and removable top and side mounting brackets.
ENORMOUSLY COOL: Supports radiators up to 360mm in the top, side, and bottom panels. Fits up to 10 x 120mm fans, or 6 x 140mm fans plus 1 x 120mm fan.
Customers say
Customers praise the PC case’s build quality, noting it feels well put together, and appreciate its spacious design with plenty of room for tidy cable management. The case is easy to build in, and customers like its fantastic airflow and cooling performance, with one customer mentioning CPU and GPU temps stay consistently low. They also appreciate its looks and cable management features.
AI-generated from the text of customer reviews
11 reviews for NZXT H9 Flow Dual-Chamber ATX Mid-Tower PC Gaming Case CM-H91FW-01 – High-Airflow Perforated Top Panel Tempered Glass Front & Side Panels 360mm Radiator Support Cable Management White
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£101.03
Amazon Customer –
Seriously good!
These cases look fantastic and are a pleasure to build in. There is so much space in the rear compartment that cable routing is an absolute doddle! Air flow is great – my CPU and GPU temps stay much lower than any other case I’ve ever used. The only negative point is that the HP Flow comes with four none RGB fans included.i can’t imagine why anyone would build a PC in this case and not use RGB fans, so the first thing you do is remove them so they can be replaced with something a little more colourful. This means I now have 12 of these fans hanging around (I’ve bought 3 of these cases so far). Surely the case could be offered a little cheaper if there was an option to buy it without any fans included. That’s my only gripe. The build quality is top-notch! Everything fits perfectly, and personally, I think this is the best looking case on the market – even nicer than its main rival, the Lian Li 011 Dynamic, as there are no frames at the front corner where the glass panels meet. It also accepts 120,240,280 and 360mm radiators in the top.
Mr G. –
Visually stunning
Beautiful case, very good build quality. Fantastic airflow (side fans were installed in exaust position so check them as per your preference – installed my 3rd party ones as intake).
Brilliant cable management and super easy to install everything.
Plenty of room for large graphics cards – im using AMD 7900xtx Merc 310 XFX edition with plenty of room and around 2inches clearance for PCIe power cables between the GPU and the side of the case.
If you have one of the larger NVIDIA 4090s simply check the height/depth of your card against the case measurements to make sure the GPU power cables have clearance.
Fantadtic cooling and great noise suppression.
Note though that, due to the design, where the front and side glass panels meet their is a tiny, tiny gap which will allow for air in/out depending on your fan configuration but it is minimal and not really an issue
Nzxt H9 Flow Elite –
A Must Buy
Great case, have been debating on buying this case for a while now and Iâm glad I did!
Easy install and plenty of room to move components and upgrade.
Cable management is excellent because you end up with a lot of cables just from the fans alone.
Great airflow too cpu sits idle at 31-32 Celsius 45-50 at high loads.
Visually stunning aswell! Great work NZXT!
Alex –
A pleasure to build in!
Having come from low end cases this case was a pleasure to build my new system in! There’s plenty of space behind the motherboard to hide, route, and organise your cables. The case feels extremely well put together and isn’t flimsy in anyway. The tempered glass does make the case extremely heavy but I don’t really see this as an issue as I’m not carrying it round with me.
J ‘Wildfire’ T –
Caselabs STH10 —> NZXT H9 Flow
Patience is not always one of my virtues, I’m prone to spontaneous purchases. I try to take my time to look around and plan accordingly, buying a case is no exception.
I have been using a Caselabs STH10 for the past 5 years and after a few years wondered why I bought it in the first place. Despite having tons of build space it’s very bulky and over-kill for my needs.
This is where the H9 Flow comes in.
I love simple box type cases. I’m not really taken by the tempered glass fad or RGB fans but despite this this case ticked all the other boxes. I found it tricky to source answers to my questions regarding clearance measurements, even NZXT have ignore my emails (2 weeks and counting).
Anyway, now onto the details…
As mentioned above, many case manufactures are very vague about details when it comes to radiator mounting options beyond the size support. 120 , 240, 360 etc.
For the record, I was able to easily fit 2 EK P360Ms which are 4.4cm thick, one in the top and bottom, without modifying the case and both with a push/pull fan config.
This was achieved due to the fact both support 14cm fans and the extra mounting rail allowed me to move the rad across thus giving me more motherboard room and access to the headers.
The only downside doing this means only one side of the rads is secured. This wont affect the bottom but the top rad can be given support from the top slot triple side mounted fan bracket.
The included fans feel cheep and just awful flimsy plastic. One of mine even had a slightly annoying clicking sound. I would recommend replacing these ASAP.
Coming from someone of high expectations and picky in general, I have found the quality of today’s cases far better than that of 5 years ago and the H9 Flow has surpassed my expectations and lives up to it’s reputation. It really is a great case with plenty of air flow.
My specs aren’t the best but it works for me this case handles temperatures better than my former using 2 x BlackIce SR2 480 MP rads.
9900KF – Basic Overclock @ 4.5GHz 1.16v (Watercooled)
Z390 Ace
64GB DDR4 3200MHz
MSI 3080 Trio Z (Watercooled)
My re-build is still in the works, around 90% complete but I hope the pictures help explain some of the rambling above.
EDIT
I have been able to fit the last fan on the upper radiators lower side and like before, without modifying the case. I came up with several possible methods and settled on one that allows me to easily access the side fan section should I need to in the future.
Marks –
Itâs a really big or huge guys and itâs amazing looking!!!!!!
On videos or photos this case nzxt h9 dose not look big and pretty but when itâs in your room and you are looking on it you are sweating like a girl, because itâs looks so good ohhh even when I got lian lee fans sick fans, looks so good, because you
should understand if you want this case looking good when you fit components inside the components should be not chip ones other ways look is not for everyone some of people just need 100% air flow they buying this NZXT H9 Flow
Because itâs beast of all cases because of best airflow,
Iâm only talking about h9 flow version the h9 elite will be same hoot as itx h210
If you thinking about buying or not you should be sure that itâs will fit on your table because I just now bought new table 140cm x 80cm and itâs looks very tidy wit this case 2 small speakers and 32inc monitor if you got monitor smaller than 32inc you will fill better Iâm now talking about who got table 140cm wide if you got 120ck than you have a problem to fit 2speakers 27inch monitor and this pc case everything vill be so close to each other but itâs for me like that because I like loads of space between pc case and monitor
Thanks All;))))
Ramiro –
Perfect for my build and have room to spare for cable management. Airflow is amazing, and everything is juts high quality. Definitely give this a try.
sacha –
Fantastique !
Le boitier qui permet de mettre en place toutes sortes de configurations avec beaucoup plus de place que l’on imagine quand on a compris que cette tour est démontable et qu’elle a des espaces supplémentaires pour les ventilateurs et refroidisseurs :
Ma config :
РCarte m̬re Hero Z790 (+++)
– I9-13900K (+++)
– RTX 5090 Refroidissement liquide (+++)
– Boitier NZXT H9 Flow (+++)
РVentilateurs Noctua (+++) / Artic (+ qui font partir pour ̻tre remplac̩ par Noctua).
– Refroidisseur CPU Noctua NH-D15 / Artic III 360
J’ai changé de boitier car la nouvelle RTX 5090 à refroidissement liquide est un monstre donc je me suis dit qu’il y aurait beaucoup de place dans ce boitier et donc que je pouvais tenter de mettre un refroidisseur CPU liquide en plus plutôt que le Noctua NH-D15… l’erreur absolue, l’Artic ne fait pas le job du Noctua !
Le boitier NZXT H9 Flow permet de tout mettre !!!
– 2 refroidisseurs liquides GPU RTX 5090 + CPU
Р1 refroidisseurs liquide GPU + 1 refroidisseur air CPU Noctua NH-D15 en ayant ̩norm̩ment de place !
=> Le refroidisseur liquide GPU sur le coté ou en haut / des ventilateurs de refroidissements en haut ou sur le côté et en bas plus extraction standard en arrière.
La magie de ce boitier de taille moyenne est que l’on peut mettre les ventilateurs au-dessus de la cage interne du boitier et on peut mettre les refroidisseurs dans des espaces dédiés et les ventilateurs en internes ce qui dégage beaucoup de place en interne.
Je recommande à fond ! la config est très performante en refroidissement donc un silence absolu !
Wajdi –
Great airflow and good looking
Obudowa nzxt h9 flow –
Na marce nzxt nigdy sie nie zawiodÅem, obudowa jak zawsze jest bardzo dobrze wykonana, Åadnie wyglada.
Khaled –
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