NZXT H3 Flow White
NZXT H3 Flow White
The NZXT H3 Flow white PC case provides a reliable foundation for building gaming rigs that require intensive heat dissipation in a smaller mATX format. Its design features finely perforated panels on the front, top, and side, allowing for a continuous supply of cool air to all critical components within the system. Despite its more compact dimensions, the Midi Tower accommodates powerful graphics cards and tall CPU coolers, so you don't have to compromise on your hardware choices. The internal layout supports modern motherboards with rear-facing connectors, simplifying cable management and contributing to a clean overall build.
Midi Tower
Case size
170mm
Max. CPU cooler height
377mm
Maximum graphics card length
1×
Number of installed fans
7×
Total number of fan positions
Key features of the NZXT H3 Flow white PC case
- Support for motherboards with rear-facing connectors eliminates visible cabling
- Finely perforated panels ensure dust filtration and air intake
- Ample interior space accommodates long graphics cards without front fans
- Pre-installed rear F120Q fan immediately exhausts heat
- Front panel includes a high-speed USB-C 3.2 Gen 2x2 port for data transfer
- PSU shroud supports mounting two fans to cool the graphics card
Solid construction and minimalist design
The case's foundation is high-quality SGCC steel, which gives the entire chassis the necessary rigidity and durability. The robust frame protects internal components and eliminates unwanted vibrations from running fans or hard drives. The materials and precision craftsmanship enhance the overall lifespan and stability of the build. The white finish is complemented by a clear tempered glass side panel that opens up a view into the computer's interior, allowing for visual hardware checks and showcasing installed components, while the clean lines and minimalist aesthetic look highly pleasing in a modern setting.
Optimised airflow and air cooling
Airflow optimisation is ensured by a fine perforated mesh on all key surfaces to draw in air. The lower section features a specially ventilated PSU shroud that supports air intake from below directly to the graphics card. This natural circulation system prevents heat from building up around critical components. The internal layout offers positions for a total of seven fans, allowing you to create a strong cross-breeze throughout the entire case. Included is one rear 120mm F120Q fan, which exhausts hot air right out of the box and provides a foundation for an effective cooling circuit.
Liquid cooling support and space for graphics cards
Liquid cooling enthusiasts will appreciate the support for radiator installation on both the front and top sides. The front panel accommodates a radiator up to 280mm in size, and the top offers space for a 240mm heat exchanger. This flexibility enables the use of powerful AIO CPU coolers. Despite the smaller mATX format, the chassis fits graphics cards up to 377mm in length without front fans installed. With a front radiator and fans installed, there is still room for cards up to 317mm, while the case's ample width allows for the installation of even massive graphics cards.
Compatibility, storage, and easy maintenance
The case supports mATX and mITX format motherboards, including modern variants with rear-facing connectors like ASUS BTF or MSI Project Zero. This significantly simplifies connections, hides most of the cabling from the main chamber, and helps you achieve a visually clean and organised interior. Storage is handled by combination bays, with one 3.5" drive bay, one 2.5" drive bay, and two universal bays for both formats available, providing plenty of capacity for both the system and data. The control panel, located on the top of the case, features modern interfaces in the form of a USB-C port with USB 3.2 Gen 2x2 standard and a classic USB-A port, which facilitate fast data transfer from external devices. Meanwhile, tool-free access to the side, front, and top panels speeds up assembly and regular maintenance, and integrated cable routing channels and tie-downs with a depth of up to 31.5mm help keep cabling neatly organised behind the motherboard.
Motherboard formats
- mATX (Micro ATX)
- mITX (Mini ITX)
Fans
- Top fan size: 2× 120mm, 2× 140mm
- Rear fan size: 1× 120mm
- Front fan size: 2× 120mm, 2× 140mm
- Side fan size: 2× 120mm
Ports
- USB 3.2 Gen 1
- USB-C
Specifications
Usage and size
Colour
Internal structure
External structure
PSU
Cooling system
Backlight
Material
Dimensions
| Code: | CBh3f01 |
| Warranty: | 24 months |
| Links: | Producer's Website: |
| Manufacturer information |
NZXT Europe GmnH, Ammerthalstrasse 32, 85551 Kircheim Bei , Munchen, Germany [email protected] 
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