NZXT H9 H3 Flow Midi Tower White

SKU
CC-H31FW-01
£65.02 £54.18
In stock
Mid-tower, Micro-ATX/Mini-ITX, 2.5" x 1+2, 3.5" x 1, 225 x 389 x 400 mm, White
  • Space-Saving Size: A space-efficient micro-ATX chassis that accommodates high-performance components without compromise.
  • High-Airflow Design: Ultra-fine steel mesh panels and a ventilated PSU shroud maximize airflow while effectively filtering out dust.
  • Extensive Cooling Support: Supports up to a 280 mm radiator in the front, a 240 mm radiator on top, and up to seven fans for powerful, customizable cooling performance.
  • Full-Size GPU Support: Fits graphics cards up to 377 mm (without front fans), 352 mm (with front fans), or 317 mm (with front radiator and fans installed).
  • Pre-Installed Rear Fan: Includes one F120Q (CV) fan at the rear to provide efficient exhaust airflow straight out of the box. CV = Case Version (3-pin DC)
  • Simplified Cable Management: Integrated cable channels and multiple tie-down points make it easy to route and organize cables for a clean, organized build.
  • Back-Connect Motherboard Compatible: Ready for rear-connector motherboards like ASUS BTF and MSI Project Zero, enabling a clean, cable-free aesthetic.
  • Tool-Free Access: Removable top, front, and side panels allow for easy upgrades and cleaning—no tools required.
More Information
SKU CC-H31FW-01
EAN 5056547207971
Manufacturer NZXT
Availability Y
Product Family H9
Space-Saving Design
The micro-ATX form factor fits into smaller spaces, maximizing desk space without compromising on performance.

Optimized Airflow
Ultra-fine mesh on the front, top, and sides enhances cooling while filtering dust. The ventilated PSU shroud optimizes intake from bottom-mounted fans.

Full-Size GPU Support
Max length of 377 mm (no front fans), 352 mm (with fans), 317 mm (with fans & radiator).

7-Fan Capacity
Supports up to 140 mm fans (two front, two top) and 120 mm fans (two bottom, one rear).

Radiator Ready
Supports a 280 mm front radiator and a 240 mm top radiator for versatile cooling setups.

Back-Connect Ready
Compatible with ASUS BTF and MSI Project Zero motherboards for a clean, cable-free build.

Tool-Free Access
Easily remove panels for building, upgrading, or cleaning.

Easy Cable Management
Integrated cable channels and tie-down points make routing clean and simple.
Technical details
Number of 3.5" bays1
Number of 2.5" bays3
Supported motherboard form factorsmicro ATX, Mini-ITX
Supported HDD sizes2.5,3.5"
Side windowYes
Product colourWhite
Number of expansion slots4
Maximum CPU cooler height17 cm
Maximum graphics card length37.7 cm
Maximum PSU length18.5 cm
TypePC
Form factorMidi Tower
Material
MaterialMesh, SGCC, Tempered glass
Ergonomics
Cable managementYes
Design
MaterialMesh, SGCC, Tempered glass
Number of 3.5" bays1
Number of 2.5" bays3
Supported motherboard form factorsmicro ATX, Mini-ITX
Side windowYes
Cable managementYes
Product colourWhite
Number of expansion slots4
Maximum CPU cooler height17 cm
Maximum graphics card length37.7 cm
Maximum PSU length18.5 cm
TypePC
Form factorMidi Tower
Tempered glass panel(s)Yes
Power supply
Number of power supply units1
Ports & interfaces
USB 3.2 Gen 2x2 Type-C ports quantity1
USB 3.2 Gen 1 (3.1 Gen 1) Type-A ports quantity1
Combo headphone/mic portYes
Cooling
Front radiator sizes supported280 mm
Top radiator sizes supported240 mm
Number of front fans supported (max)2
Front fans diameters supported120,140 mm
Rear fans installed1x 120 mm
Number of rear fans supported (max)1
Rear fans diameters supported120 mm
Number of top fans supported (max)2
Top fans diameters supported120,140 mm
Number of bottom fans supported (max)2
Bottom fans diameters supported120 mm
Storage
Supported HDD sizes2.5,3.5"
Weight & dimensions
Width225 mm
Depth389 mm
Height400 mm
Weight4.8 kg

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N/A
N/A
2 to 3
N/A
N/A
USB 2.0 ports quantity
N/A
N/A
0
0
1
0
Product colour
White
Black
Black
Black
Black
Black
USB 3.2 Gen 2 (3.1 Gen 2) Type-C ports quantity
N/A
N/A
0
0
0
0
Form factor
Midi Tower
Cube
Cube
Midi Tower
Midi Tower
Midi Tower
USB 3.2 Gen 2 (3.1 Gen 2) Type-A ports quantity
N/A
N/A
N/A
0
N/A
N/A
Power supply included
N/A
N
N
N
N
N
Number of 3.5" bays
1 to 2
6 to 7
8 to 9
3 to 4
2 to 3
2 to 3
Type
PC
PC
PC
PC
PC
PC
USB 3.2 Gen 1 (3.1 Gen 1) Type-A ports quantity
1
N/A
N/A
2
1
2