The NZXT H3 Flow is a compact Micro-ATX case that pairs a high-airflow mesh front with a tempered glass side panel. It supports back-connect Micro-ATX boards, fits graphics cards up to 377mm, takes a 280mm radiator at the front and ships with an F120Q rear fan, with room for up to seven fans.
Key Features
Compact 35-litre Micro-ATX chassis with a mesh front
Tempered glass side panel to show off the build
Supports back-connect Micro-ATX motherboards
Graphics cards up to 377mm (352mm with front fans)
Front radiator up to 280mm, top up to 240mm
F120Q rear fan included, up to 7 fans supported
CPU coolers up to 170mm and PSUs up to 185mm
Front I/O with USB 3.2 Gen 2x2 Type-C
Full Specifications
General
Brand
NZXT
Model
H3 Flow
Part Number
CC-H31FW-01
Case Type
Micro-ATX case
Colour
White
Materials
SGCC steel, clear tempered glass
Side Panel
Tempered glass
Front Panel
Mesh
Motherboard & Expansion
Motherboard Support
Micro-ATX / Mini-ITX
Back-Connector Motherboards
Supported (Micro-ATX)
Expansion Slots
4
Storage
2.5" Drive Bays
1 + 2 (3 total)
3.5" Drive Bays
1
Cooling
Pre-installed Fans
1 x F120Q (Case Version), rear
Fan Speed
1,350 ± 150 RPM
Airflow
60.2 CFM
Static Pressure
1.05 mm-H2O
Noise Level
24.1 dBA
Fan Connector
3-pin DC
Front Fans
2 x 120 mm or 2 x 140 mm
Top Fans
2 x 120 mm or 2 x 140 mm
Bottom Fans
2 x 120 mm
Rear Fans
1 x 120 mm (included)
Maximum Fans
7
Radiator Support
Front
Up to 280 mm (radiator + fan up to 63 mm)
Top
Up to 240 mm (radiator + fan up to 70 mm)
Clearances
Max GPU Length
377 mm without front fans; 352 mm with front fans; 317 mm with front radiator
Max CPU Cooler Height
170 mm
Max PSU Length
185 mm
PSU Type
ATX
Cable Routing Space
Up to 31.5 mm
Front I/O
Ports
1 x USB 3.2 Type-A, 1 x USB 3.2 Gen 2x2 Type-C
Dimensions & Weight
Dimensions
400 x 225 x 389 mm (H x W x D)
Volume
35.0 L
Weight
5.017 kg
Warranty
Manufacturer Warranty
2 years
Who Is It For?
Gamers building a compact Micro-ATX PC
Builders using back-connect Micro-ATX boards
Users who want strong airflow in a small footprint
Anyone wanting a clean white minimalist case
In the Box
NZXT H3 Flow case (White)
1x F120Q fan (pre-installed, rear)
Installation hardware
Frequently Asked Questions
Does the NZXT H3 Flow include RGB fans? No. The official specification lists one F120Q (Case Version) fan at the rear; RGB fans can be added.
Does it support ATX motherboards? No. It supports Micro-ATX and Mini-ITX boards, including back-connect Micro-ATX boards.
What radiator sizes fit? Up to 280mm at the front and up to 240mm at the top.
Order the NZXT H3 Flow White from PC PARK with warranty and fast delivery across Saudi Arabia.
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Our Milestones
2023
Expanded our product catalog with the latest gaming and professional hardware, serving thousands of satisfied customers
2024
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2025
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2026
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