NZXT H3 Flow PC Case, Mid Tower, mATX, Tempered Glass - Black
The NZXT H3 Flow in black is a powerful micro-ATX case designed for space-saving builds without compromise. Featuring mesh panels all around, radiator support, and compatibility with back-connect motherboards, it is ideal for modern, tidy systems.
- Compact format for powerful builds in a small space
- Mesh panels ensure optimized airflow
- Space for GPUs up to 377 mm – ready for current high-end cards
- Radiator support: up to 280 mm at the front and 240 mm on top
- Tool-less removable panels for quick access and cleaning
Optimised airflow & efficient design
The H3 Flow is designed for maximum cooling performance in a compact format. Mesh surfaces on the front, side, and top, as well as a ventilated PSU tunnel, allow constant air circulation. Up to seven fans can be installed – perfect for powerful builds.
Ready for large hardware
Large components fit easily inside: GPUs up to 377 mm long, 280 mm radiators, and 170 mm CPU coolers are supported. The interior is designed for clean cable management and even supports back-connect motherboards such as the ASUS BTF.
Easy assembly & thoughtful features
The front, side, and top panels can be removed without tools. A pre-installed F120Q fan provides immediate exhaust, while USB-C and USB-A on the front panel offer modern connectivity options. This way, you can build quickly, cleanly, and future-proof.
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Colour
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Primary Colour
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Black
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Dimensions
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Length / Depth
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389 mm
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Width
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255 mm
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Height
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400 mm
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Weight
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4.8 kg
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Case
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Case Type
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Mid Tower
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Motherboard Support
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Compatible Motherboard Formats
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Micro-ATX, Mini-ITX
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Max. Motherboard Format
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Micro-ATX
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Internal Dimensions
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Max. CPU Cooler Height
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170 mm
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Max. GPU Length
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377 mm
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Max. PSU Length / Depth
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185 mm
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Display
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Display Included
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No
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Power Supply
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PSU included
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No
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PSU Format
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ATX
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Power Supply Position
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rear bottom
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Cable Specifications
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Riser Cable Included
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No
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Fan Support
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Case Fan Support (Bottom)
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120mm Fan (2x)
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Case Fan Support (Front)
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120mm Fan (2x), 140mm Fan (2x)
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Case Fan Support (Rear)
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120mm Fan (1x)
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Case Fan Support (Top)
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120mm Fan (2x), 140mm Fan (2x)
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Max. Number of Fans
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7
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120 mm fans
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7
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140 mm fans
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4
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Radiator Support
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Max. Radiator Compatibility
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1x Dual (240 mm), 1x Dual (280 mm)
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Radiator/AIO Support (Front)
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280mm Radiator
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Radiator/AIO Support (Rear)
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120mm Radiator
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Radiator/AIO Support (Top)
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240mm Radiator
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Drive Bays
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Max. 2.5 Inch Drives
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3
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Max. 3.5 Inch Drives
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1
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Max. 5.25 Inch Drives
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0
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Hot swap drive bays
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No
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External Ports
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Front I/O – USB Type C Ports Total
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1
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Front I/O – USB Type A Ports Total
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1
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USB 3.2 (external) Type C
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1
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USB 3.0 (external) Type A
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1
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Case Features
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I/O position
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Top
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Side panel
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with window
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Vertical GPU Mount
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No
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Adjustable Vertical GPU Bracket
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No
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Front door
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No
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Cable Management
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Yes
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Filters Included
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Yes
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Noise dampening
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No
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Mainboard slide / tray
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No
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Transport System
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No
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Back Connect
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Back Connect
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Yes
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Back-Connect Compatibility
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ASUS BTF, MSI Project Zero
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Expansion Slots
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Expansion slots / PCI slots
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4
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Features
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Housing Feedthrough
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No
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Compatibility
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Compatibility Note
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Please refer to the manufacturer's compatibility information. You can find the latest overview on the manufacturer's website.
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Connectivity
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Card reader
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No
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Fan Header
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Fan Controller / Fan Hub
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No
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Mounting
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Case VESA Mountable
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No
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Internal Monitor Mount
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No
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Materials
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Materials
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SGCC (Steel), Tempered Glass
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Lighting
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Lighting / RGB
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No
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Additional Contents
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Fans Included
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Yes
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Included fans
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1x 120 mm
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Product reviews displayed are aggregated from all Pro Gamers Group websites.
| Manufacturer Information | |
| Responsible Person |