NZXT H9 Flow RGB (2025) Black
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NZXT H9 Flow RGB (2025) Black
The NZXT H9 Flow (2025) RGB PC case in black is the foundation for building gaming rigs that require efficient airflow. Its dual-chamber layout separates heat-intensive chips from the power supply and drives, optimising cooling for the entire system. This spacious Midi Tower chassis offers plenty of room for long graphics cards and large water-cooling radiators, complemented by the integrated F420 RGB Core unit. The black steel construction with panoramic glass provides a direct view of the hardware and fully supports motherboards with rear connectors. With support for up to ten fans and thoughtful perforations, your components will stay cool even under prolonged load.
Midi Tower
Case size
165mm
Maximum CPU cooler height
459mm
Maximum graphics card length
4×
Number of included fans
10×
Total number of fan positions
Key features of the NZXT H9 Flow RGB (2025) Black PC case
- Dual-chamber design separates heat sources from sensitive components
- Frameless glass offers a clear view of the hardware
- Support for motherboards with rear connectors like BTF or Project Zero
- The chassis allows for the installation of large water-cooling radiators
- Package includes a fan unit with RGB backlighting
- Generous internal capacity for graphics cards up to 459mm
- Perforated panels ensure a high intake of fresh air
NZXT H9 Flow's dual-chamber design and panoramic view
The case's interior uses a smart division into two separate chambers, which fundamentally impacts the overall organisation of the build. The main chamber hosts the motherboard, graphics card, and processor, while the second section houses the power supply and disk drives. This layout improves airflow around key components and also simplifies cable management, maintaining a clean interior look. The visual centrepiece is the frameless connection of the front and side tempered glass panels. The panoramic glass with a seamless corner joint offers a direct view of the hardware and backlit components. The clear tempered glass provides an uninterrupted view of the graphics card and cooling system, emphasising the overall appearance of the build in any room.
Optimised case cooling and pre-installed F420 RGB Core unit
The top panel and the right side panel feature fine perforations for maximum fresh air intake. The perforated steel panels work with the thoughtful fan layout to draw warm air away from the case. This system ensures your hardware maintains low temperatures even during intense gaming sessions, which extends the lifespan of individual parts. The package includes a special F420 RGB Core frame, which integrates three 140mm fans with addressable RGB backlighting. This unit provides a large intake of air from the side while creating impressive lighting effects. Another fan at the rear works to exhaust heat, so you get effective cooling right out of the box.
Extensive fan support in the NZXT H9 Flow and installation of high-performance water radiators
The case offers extensive expansion options, accommodating up to ten fans in total. The top, bottom, and side positions support the installation of three fans each, creating a strong chimney effect. The high number of fan positions ensures efficient heat dissipation from the processor and graphics card while maintaining low noise levels. The spacious interior allows for the use of large-format water-cooling radiators, which are essential for high-end processors. The case supports radiator mounting on the top, side, and bottom. This flexibility gives you the freedom to choose your cooling, whether you prefer ready-made AIO sets or are building a complex custom loop.
NZXT H9 Flow's compatibility with BTF motherboards and space for long graphics cards
The chassis is fully compatible with motherboards featuring rear connections, such as the ASUS BTF or MSI Project Zero standards. The cutouts in the metal plate are precisely aligned for these boards, letting you route all cabling directly into the rear chamber. The clean interior of the main chamber ensures smooth airflow and showcases the aesthetics of the installed components. Gaming graphics cards require space, which is why this case is ready for GPUs up to 459mm long. The case's capacity enables easy installation of large cards like the RTX 4090 or Radeon RX 7900. The generous internal space simplifies assembly and provides capacity for future hardware upgrades, while maintaining sufficient clearance from the front fans or radiator.
Cable management system and flexible data storage
The rear chamber hides a sophisticated cable routing and organisation system that simplifies PC building. Wide channels, pre-installed hook-and-loop straps, and numerous tie-down points guide cables exactly where you need them. This means that even less experienced users can achieve tidy cable management, which positively impacts both the overall look and airflow. Two cages are available for standard 3.5" hard drives and four dedicated positions for fast 2.5" SSDs. Support for up to six drives offers extensive storage space for your game library, multimedia, and work projects right inside the chassis.
Motherboard formats
- ATX
- mATX (Micro ATX)
- mITX (Mini ITX)
- E-ATX (Extended ATX)
Fans
- Rear fan size: 1× 120mm
- Bottom fan size: 3× 120mm or 3× 140mm
- Front fan size: 3× 140mm or 3× 120mm
- Top fan size: 3× 120mm or 3× 140mm
Ports
- USB 3.2 Gen 1
- USB-C
- Combined 3.5mm audio jack
Specifications
Usage and size
Colour
Internal structure
External structure
PSU
Cooling system
Backlight
Material
Dimensions
| Code: | CBh9fa4 |
| 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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