NZXT H2 Flow - Mini-ITX 20.7L Airflow PC Case - Black | Compact 20.7L Mini-ITX case with 2 included 120mm top fans and PCIe 5.0 riser. Small-form-factor airflow done right.
Condition: New
Notify me when this product is back in stock
$149.99
Buy Now, Pay Later
As low as
$25.00
/ mo
Learn more
- – 6-month term
- – No impact on credit to apply
- – Instant approval decision
- – Secure and straightforward checkout
Payment plans are offered through our trusted finance partners Klarna, Affirm, Afterpay, Zip, Apple Pay, and Google Pay. No-credit-needed leasing options through Acima may also be available at checkout.
Learn more about financing & leasing here.
Selected Option
Free shipping on this product
30-day returns
Learn more
FREE 30-day refund/replacement
To qualify for a full refund, items must be returned in their original, unused condition. If an item is returned in a used, damaged, or materially different state, you may be granted a partial refund.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
Availability:
Unavailable
Recently Viewed
At a glance
- Condition
- New
- Color
- Black
- Model
- CI-H21FB-01
- Weight
- 4.55 kg
- Material
- Glass, Metal
- Case Type
- Mini-Tower
- Cooling Method
- Air, Liquid
- Warranty
- 2 Year Manufacturer
- Works with
- Gaming Console
Features 5
- SHOWCASE YOUR LIQUID COOLING Hybrid glass-and-mesh side panel reveals your build while supporting up to a 280 mm radiator for efficient, sustained cooling.
- COMPACT SIZE. SERIOUS PERFORMANCE A 20.7 L design fits most GPUs up to 331 mm, bringing high-end power to a footprint smaller than a sheet of paper.
- AIRFLOW, FROM EVERY SIDE Ultra-fine mesh panels maximize fresh air intake while filtering dust to keep components cooler, cleaner, and performing consistently.
- DESIGNED FOR EFFORTLESS BUILDS Tool-less panels, integrated cable routing Velcro straps simplify installation while maintaining a clean, organized interior.
- PERFORMANCE, PRE-INSTALLED Premium PCIe 5.0 riser cable and dual F120Q CV fans enable full-bandwidth vertical GPU mounting and immediate exhaust cooling.
Description
NZXT H2 Flow (CI-H21FB-01) is a mighty, compact vertical mini-ITX case designed to save space while showcasing top-tier components. Smart cable management, tool-less access, dual top fans, and a premium PCIe 5.0 riser cable make the building experience fast and simple.
Specs 21
| Brand | NZXT |
|---|---|
| Motherboard Compatability | Mini ITX |
| Case Type | Mini-Tower |
| Recommended Uses For Product | Gaming |
| Color | Black |
| Material | Glass, Metal |
| Power Supply Mounting Type | Bottom Mount |
| Cooling Method | Air, Liquid |
| Model Name | NZXT H2 |
| Item Weight | 4.55 kg |
| Supported Motherboard | Mini ITX |
| Total USB 3.0 Ports | 1 |
| Other Special Features of the Product | Tool-less Installation, Integrated Cable Management |
| Enclosure Material | Glass, Metal |
| Antenna Location | Gaming |
| Number of Items | 1 |
| Unit Count | 1 Count |
| Manufacturer | NZXT |
| UPC | 810074848404 |
| Model Number | CI-H21FB-01 |
| Mfr Part Number | CI-H21FB-01 |
No specs match.
Frequently asked questions
This product is currently out of stock. Please check back later for shipping info.
Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
- Klarna Financing
- Affirm Pay in 4
- Affirm Financing
- Afterpay Financing
- Zip Pay in 4
- Financing through Apple Pay
- Financing through Google Pay
Learn more about financing & leasing here.
Similar Products
Top Amazon Reviews
Excellent case, well done NZXT
Color: Black
Excellent case. I was unable to make this silent I think because of the small air volume and SFF requirement, but if a slight humming doesn't bother you then this case is super easy to build in and look excellent. (I'm just a bit too autistic)
Reviewed in the United States on June 7, 2026 by HiveTyrant36
Expensive but with it
Color: Black
Great size. Cool because it’s tall and doesn’t feet cheap because the material used is heavy and actual metal. Easy to take apart and work with. Hides any cables you have better than I thought.
Reviewed in the United States on July 29, 2026 by Trent batista
ALMOST a perfect case!!!!
Color: Black
ALMOST a perfect case!!!! The build quality is excellent. The airflow is fantastic. What is it missing? it should be much taller, to fit a longer GPU. Which means fitting a 5090. But then it also needs to be a bit wider to fit a 5090. So with those two fixes? that would make the perfect case. And since its taller, you could probably fit a 360mm radiator in the front since its taller. Which would be a huge win. Its ALMOST PERFECT. Its already assembled you just throw parts in and you are good to go. No issues with the pci-e gen5 cable! Legit works with my 9070xt no issues!!!! Its a sick case. VERY QUIET. So far been an absolute breeze, and yeah that's the joke.
...
show more
Reviewed in the United States on May 17, 2026 by namco
Better that I expected.
Color: Black
Well designed case. Good quality parts. Looks good. Small footprint. A+
Reviewed in the United States on June 5, 2026 by CAN KUDRET SANDALCI
More mini ITX options
Color: White
H2 flow is a great case and should fit most gpus. However, there are some like the one I have (PNY 4080 16gb verto, size Length: 13.06 inches (331.7 mm)Height/Width: 5.39 inches (136.9 mm)Thickness: 2.8 inches — 3.5 Slot) that will only fit if you kind of force it in; this specific gpus face plate is just barely larger than what the case accommodates. I was able to push the gpu in, however, the gpu would sit right against the case wall and the fans would hit the wall; leaving a single corner on the wall detached solved the issue. for my case, cable management was alsmost non existing since i couldnt use the space behind the gpu. So, id be wary of trying this case with any of the unusually large gpus. I have a 12900k undervolted and have not had any temp issues. I was able to fit a 280 AIO. TLDR Overall a great looking case, just be wary if you have a very large GPU otherwise very easy to build in specially for mini ITX. Case size is great since it is mostly vertical space.
...
show more
Reviewed in the United States on August 8, 2026 by Rogelio Rojas
Amazing case!
Color: White
Great case! Definitely can feel the quality of build on this one. My only complaint so far is that you really have to apply some pressure to seat your graphics card in. My MSI Expert 4080 super had a bit of a tough time slotting in. Had to really push it down even though it felt like it had no more room. This issue may just depend on the graphics card itself.
...
show more
Reviewed in the United States on July 31, 2026 by EriaESP
4k TV Couch Gaming Build
Color: Black
The NZXT H2 Flow is clearly designed with modern liquid cooling in mind, and it feels almost purpose-built to showcase a 280mm AIO like the Kraken Elite. The hybrid glass-and-mesh side panel does a great job of putting your components on display while still maintaining strong airflow. From a design standpoint, it strikes a nice balance between aesthetics and thermals. That said, the case feels larger than expected for a Mini-ITX enclosure. At 20.7 liters, it leans more toward compact mid-tower territory than truly small form factor. Compared to its predecessor, the H1, this case is noticeably bigger and less space-efficient. Despite the increased size, the extra room does make building significantly easier. Cable management is straightforward thanks to the integrated Velcro straps and thoughtful layout. The tool-less panels are a welcome addition and make accessing components quick and painless. There’s ample clearance for larger GPUs, and fitting high-end hardware is not an issue. However, because of that extra space, it feels like NZXT could have pushed the compactness further without sacrificing usability. The case almost feels like it was scaled up primarily to accommodate larger radiators rather than optimizing footprint. Thermal performance is solid, especially when paired with a high-quality AIO. With the Kraken Elite 280mm installed, idle temperatures for both CPU and GPU sit comfortably around 41 degrees. Airflow is excellent thanks to the mesh panels on multiple sides, which help maintain consistent cooling. The two pre-installed 120mm top fans contribute to efficient exhaust right out of the box. Dust filtration also seems well thought out, helping keep internal components cleaner over time. Overall cooling performance aligns well with the case’s airflow-focused design. In terms of real-world use, this build performs exceptionally well for 4K TV couch gaming. Paired with a powerful GPU and controlled via an Xbox Elite Series 2 controller, the experience is smooth and reliable. The system feels responsive and stable even under demanding gaming conditions. The included PCIe 5.0 riser cable is a nice touch, enabling vertical GPU mounting without bandwidth concerns. This adds to both the visual appeal and functionality of the build. It’s clear that the case is designed with high-performance gaming setups in mind. The component selection in this build complements the case well and takes full advantage of its capabilities. High-speed DDR5 memory and a strong power supply ensure stability and future-proofing. The motherboard and CPU combination deliver solid performance without excessive heat output. Storage is fast and reliable, contributing to quick load times and smooth operation. Altogether, the system feels balanced and purpose-driven. While the case may not be the smallest Mini-ITX option, it delivers where it matters in performance, ease of build, and cooling efficiency. My Build: Crucial P510 Corsair SF1000 Asus Rog Strix B850i NZXT Kraken Elite 280mm MSI Shadow 5070TI Biwin Black Opal 48GB DDR5 AMD Ryzen 5 7600X
...
show more
Reviewed in the United States on April 1, 2026 by Customer Review
Perfect size
Color: Black
Exactly what I was looking for. I wanted a smaller build without compromising what I can put inside of it. I put a 7800x3d, 280 kraken elite AIO, cooler master 850 sfx Psu, Asrock b650i, 32gb ram and a Xfx 9070xt swift in this.
Reviewed in the United States on July 21, 2026 by Robert