NZXT H2 Flow Mini-ITX Case and C850 SFX PSU: The world of Small Form Factor (SFF) gaming has witnessed a remarkable breakthrough recently. NZXT, a renowned name in gaming computer hardware, has officially announced the launch of two cutting-edge products for SFF gaming enthusiasts who are always eager to experience top-notch performance from their gaming computers. These products are the NZXT H2 Flow Mini-ITX case and the C850 SFX PSU.
In recent years, as computer hardware, especially high-end graphics cards, is becoming increasingly large and power-hungry, SFF computer builders are facing a significant problem: ensuring proper cooling for their computers. Fortunately, NZXT’s latest products are here to solve this problem by embracing the “SFF Ready” concept.
The NZXT H2 Flow: A Vertical Advancement in Airflow
The most significant feature of NZXT’s latest lineup is undoubtedly their H2 Flow Mini-ITX case. With a volume as small as 20.7 liters and a vertical design, it occupies a negligible amount of room on a computer desk. Unlike other SFF computer cases that are usually a thermal bottleneck for computer builders, the H2 Flow prioritizes proper ventilation.
Innovative Three-Sided Mesh Design
It is not merely marketing fluff to call this case “Flow.” The H2 Flow boasts high-performance mesh panels on three sides, which are the front, top, and rear of the case. This enables the natural “chimney effect” to draw in cool air and exhaust hot air efficiently.
High-End Compatibility and PCIe 5.0
Another issue that many Mini-ITX enthusiasts encounter is the difficulty of supporting high-end multi-slot graphics cards. The H2 Flow solves this issue by supporting up to 330 mm long graphics cards. Furthermore, it comes with a high-performance PCIe 5.0 Riser Cable, which ensures that users are future-proofed for the latest and upcoming high-end graphics cards, such as the NVIDIA GeForce RTX 50 Series.
Better Liquid Cooling
Unlike other Mini-ITX cases that limit users to using only small-sized air coolers, the H2 Flow supports up to a 280 mm AIO liquid cooler that can be mounted on top of the case. It is therefore suitable for high-end CPUs that require significant cooling solutions, such as the latest Intel Core i9 and AMD Ryzen 9 CPUs.
C850 SFX PSU: Massive Power in a Tiny Box
To go along with their new H2 Flow case, NZXT is also launching their new C850 SFX Power Supply. Compact cases require a similarly compact power supply, and SFF cases have historically forced users to choose between power supply wattage and cable management flexibility. That is no longer necessary.
ATX 3.1 and PCIe 5.1 Standards
The new C850 SFX PSU is designed for the future. It is compliant with both ATX 3.1 and PCIe 5.1 standards. This means it comes equipped with the new 12V 2×6 connector. This single cable is capable of providing up to 600W of power directly to the graphics card, eliminating the need for a messy adapter and keeping the system running smoothly in the tight spaces inside a SFF system.
80 Plus Gold Efficiency
For SFF cases, it is also important to ensure that a power supply is as efficient as possible to prevent overheating. The new C850 SFX PSU is rated 80 Plus Gold to ensure that it is as efficient as possible. Additionally, it also comes equipped with a 0 RPM fan mode to ensure that it is as quiet as possible during low-load activities such as surfing the web or watching a movie.
Why SFF Gaming is the Future of Tech
For years, “compact” meant “underpowered.” However, with the H2 Flow and the C850 SFX, NZXT is proving that you can have a flagship gaming experience in a chassis that fits in a backpack. This launch aligns perfectly with the industry’s shift toward SFF-Ready Enthusiast GeForce Cards, a standard initiated by NVIDIA to help consumers identify which high-end cards fit in smaller cases.
By providing both the “house” (the H2 Flow) and the “engine” (the C850 SFX), NZXT has simplified the process for gamers who want a clean, minimalist setup without losing the “wow factor” of a high-performance rig.
Pricing and Market Availability
Both products are positioned as premium offerings for the enthusiast market:
- NZXT H2 Flow Mini-ITX Case: MSRP $149.99
- NZXT C850 SFX PSU: MSRP $199.99
Both are expected to be available at major retailers and the NZXT webstore starting this month. Whether you are a veteran SFF builder or a newcomer looking to downsize your setup, this new duo represents one of the most refined entries into the small-form-factor market in recent years.
Final Thoughts for Builders
If you’ve been waiting for the right moment to switch to a Mini-ITX build, the NZXT H2 Flow provides the thermal headroom and GPU clearance that was previously only found in much larger cases. Combined with the rock-solid stability of the C850 SFX, NZXT has delivered a “dream team” for the 2026 gaming landscape.
Conclusion: Is the NZXT H2 Flow and C850 SFX Worth It?
The launch of the NZXT H2 Flow and the C850 SFX PSU marks a significant milestone for the SFF (Small Form Factor) community. For years, building a powerful PC in a small case felt like a compromise between size and heat. However, NZXT has effectively removed those barriers.
By pairing high-performance airflow with cutting-edge power delivery like ATX 3.1, they’ve built a world where enthusiasts can finally use their flagship components without worrying about thermal throttling. If you’re looking for a way to free up desk space without sacrificing a single frame in your favorite games, this pair is arguably the best SFF option available in 2026.
Frequently Asked Questions (FAQs)
Does the NZXT H2 Flow support NVIDIA’s latest RTX 50 series graphics cards?
Yes, the H2 Flow is designed with today’s latest high-performance graphics cards in mind. The H2 Flow supports graphics cards up to 330mm in length and includes a PCIe 5.0 Riser Cable. This means that it’s fully compatible with NVIDIA’s latest “SFF Ready” RTX 50 series and all other high-performance enthusiast-grade graphics cards.
Is the C850 SFX Power Supply fully modular?
Absolutely. The NZXT C850 SFX Power Supply is fully modular. This is important for Mini-ITX systems. With a fully modular power supply like this one, you’ll be able to use only those power cables that you need. This will greatly enhance airflow in a 20.7L chassis.
What type of cooling solutions may be installed inside the H2 Flow?
Despite the small size of the H2 Flow case, it is a relatively versatile case. It accommodates a 280mm AIO liquid cooling system at the top. For those who prefer to use air cooling, the mesh design of the case’s three sides ensures that small air cooling solutions get ample airflow.
What advantage does the use of the ATX 3.1 specification provide in the C850 SFX power supply?
The use of the ATX 3.1 specification with the 12V 2×6 connector provides a more reliable power supply to high-wattage components. It helps to prevent the power failures or “power spikes” experienced with high-end GPU cards.
What is the total volume of the NZXT H2 Flow case?
The total volume of the NZXT H2 Flow case is 20.7 Liters. It is therefore a small case but one that accommodates high-performance components, which normally require large cases.
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