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NZXT H3 Flow black (CC-H31FB-01)

Photos - Computer Case NZXT H3 Flow black
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NZXT H3 Flow black
black white
Chassis Form Factor:Mini Tower
Motherboard size:micro-ATX
PSU power:no PSU
Internal bays 3.5":1
Internal bays 2.5":3
Front panel:USB A 1, USB C 1

Compact Mini Tower gaming case designed for users who do not want to compromise on cooling when building a high-performance system based on micro-ATX. The design is based on the concept of maximum airflow, implemented through perforated panels with ultra-fine mesh at the front and top, which effectively filter dust. The chassis offers extensive options for cooling organization: up to seven fan mounts and support for liquid cooling radiators up to 280 mm at the front and 240 mm at the top.

One 120 mm fan is pre-installed on the rear panel for hot air exhaust. Despite its compact size, the interior space allows for full-size graphics cards up to 377 mm long (without front fans) and CPU coolers up to 170 mm high. A key feature, oriented towards modern trends, is the support for motherboards with back-connect connectors. This, combined with well-thought-out cable management channels, allows for an exceptionally tidy build appearance. On the top panel of the NZXT H3 Flow case are peripheral connectors, among which stands out a high-speed USB-C 3.2 Gen 2x2 port.

All specifications
Specifications H3 Flow Black
Main
Featuresgaming
Form factorMini Tower
Mountvertical
Motherboard supportmicro-ATX
Board placementvertical
Reverse layout motherboard support
PSU form factorATX (regular)
Computer case
Dimensions (HxWxD)400x225x389 mm
PSU max lenght185 mm
Graphics card max lenght352 mm
Fan max height170 mm
Weight4.8 kg
Materialsteel
Side panelremovable
Storage
PSU
PSU mountbottom
3.5" bays1
internal 2.5" compartments3 / 2 вместо 3,5" /
Expansion slots4
Cooling
Fans total1 шт / 120mm /
Fans (back)1x120mm
Fans (front)2x140mm / 2x120mm /
Fans (top)2x140mm / 2x120mm /
Fans (bottom)2x120mm
Fan mounts total7
Dust filtertop and bottom
Liquid cooling support
Liquid cooling system
Liquid cooling (rear)120 mm
Liquid cooling (front)280 mm
Liquid cooling (top)240mm
Liquid cooling mounts3
Connectors and functions
Placementon top of the case
USB A 5Gbps (3.2 gen1)1 pcs
USB C 20Gbps (3.2 gen2x2)1 pcs
Audio (microphone/headphones)
More features
Front panellattice
Side panel windowtempered glass
More featureshidden wiring
CPU cooling mount window
Official Websitenzxt.com
Added to E-CatalogJuly 2025
P/N
CC-H31FB-01

The information in the model description is for reference purposes.
Always clarify the specifications and configuration of the product with the online store manager before purchasing.
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NZXT H3 Flow Mid Tower Case - Black CC-H31FB-01

Sized Down. Powered Up. The H3 Flow delivers high-performance airflow in a space-efficient micro-ATX footprint. With fine me... moresh panels, a ventilated PSU shroud, and support for large components, it keeps powerful parts cool without taking over your desk. Space-Saving Design The micro-ATX form factor fits into smaller spaces, maximizing desk space without compromising on performance. Optimised 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.
CCLonline.com
Delivery: to United Kingdom
Report
£43.99

NZXT H3 Flow Tempered Glass Micro-ATX Gaming PC Case Black CC-H31FB-01

The H3 Flow micro-ATX case combines a space-efficient design with high-performance capability. Designed to support full-sized... morecomponents, it features ultra-fine mesh panels and a ventilated PSU shroud to maintain consistent, optimized airflow throughout your build. 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 cleaningno tools required. Sized Down. Powered Up. The H3 Flow delivers high-performance airflow in a space-efficient micro-ATX footprint. With fine mesh panels, a ventilated PSU shroud, and support for large components, it keeps powerful parts cool without taking over your desk. 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. Close-up of a white computer case interior with a blue banner stating Up to 377 mm. At the bottom right, a label reads 50 Series Ready in green and black. Temperature display shows 32°C. Full-Size GPU Support Max length of 377 mm (no front fans), 352 mm (with fans), 317 mm (with fans & radiator). H3 - 7-Fan Capacity 7-Fan Capacity Supports up to 140 mm fans (two front, two top) and 120 mm fans (two bottom, one rear). A white PC case interior with labels showing radiator support: up to 120 mm on the left, up to 240 mm at the top, and up to 280 mm on the right side of the case. Radiator Ready Supports a 280 mm front radiator and a 240 mm top radiator for versatile cooling setups. A white computer case interior with various motherboard connectors and slots highlighted in purple, including power, data, and fan headers. The NZXT logo is visible on the left panel. Back-Connect Ready Compatible
Box.co.uk
Delivery: to United Kingdom
Report
£47.99

NZXT H3 Flow Micro-ATX PC Case Optimized Airflow Includes 1 x 120mm Rear Fan Supports Full-Sized GPUs Fits 280mm Front 240mm

SPACE-SAVING SIZE — A space-efficient micro-ATX chassis that accommodates high-performance components without compromise. HI... moreGH-AIRFLOW DESIGN — Ultra-fine steel mesh on the panels and PSU shroud maximizes airflow while effectively filtering dust. EXTENSIVE COOLING SUPPORT — Supports up to a 280 mm radiator at the front, a 240 mm radiator at the top, and up to seven fans for powerful cooling performance. FULL-SIZE GRAPHICS CARDS — Fits GPUs up to 377 mm (without front fans), 352 mm (with front fans), and 317 mm (with front radiator and fans installed). PRE-INSTALLED REAR FAN — Comes equipped with a F120Q (CV) fan at the rear for efficient exhaust airflow right out of the box.
Amazon.co.uk
Delivery: to United Kingdom
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£49.98

NZXT H3 Flow (2025) Tempered Glass Black microATX Gaming Case

Scan.co.uk
Delivery: to United Kingdom
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£49.98

NZXT H3 Flow microATX Mid-Tower PC Case - White, Black

- The NZXT H3 Flow is easy to build in with simplified cable management and tool-less access - It's space for 2 bottom mounte... mored fans to keep your GPU nice and chilly - It comes with a 120 mm fan and there's room for 6 more to get the air moving - The mesh panels are designed to improve air flow and keep dust away from your hardware - You'll have plenty of room - there's space for a 280 mm radiator and a 377 mm GPU
Currys.co.uk
Delivery: to United Kingdom
Report
£53.99
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NZXT H3 Flow blackfrom £43.9912 offers
NZXT H3 Flow whitefrom £47.9914 offers