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H-Series

Find your fit.

Six H-series cases, from 20 L Mini-ITX to 76 L dual-chamber ATX. Clean by default, RGB by choice — start with the size that fits your desk, your parts, and the build you're making.

6
Series
20 – 76 L
Volume Range
435 mm
Max GPU
2 years
Warranty
Featured · H2 FlowNZXT H2 Flow — 20.7 L Mini-ITX small-form-factor case
Why NZXT Cases

Designed around the builder.

Performance

Tempered glass, mesh intakes, and large AIO support tuned to every form factor — from 20.7 L SFF to 76.6 L dual-chamber.

Usability

Tool-less panels with hinged openings. Pre-routed cable channels. Factory-wired RGB. Your first build — or your fifteenth — still feels good.

Expression

Glass panels showcase what you built. A neutral visual language keeps your components the hero — black or white, one aesthetic.

Quality

Durable steel, flush-mounted tempered glass, and a 2-year warranty. Built to hold the same parts through multiple upgrade cycles.

Reviews · Builders · Press

Built, reviewed, loved.

From customers & tech media

Even the best SFF cases I've tested can't match the temps of the H3 Flow.

PC Perspective
H3 Flow · May 2025
Read review

A lot of thought has been put into this case — even down to where the GPU is mounted.

ShortCircuit
H2 Flow · Feb 2026
Watch review

This might be one of the best ATX cases on the market right now.

Hardware Canucks
H7 Flow · Aug 2024
Watch review

I used to have the H1, and it was one of my favorite builds — until the H2 came out. It's designed to grow with the user in time.

Luis O.Verified buyer
H2 Flow
See review

The cable management in this case is pure joy — so much room to easily manage everything. Adding or removing components is effortless.

TobezVerified buyer
H9 Flow RGB
See review

Even at full load on GPU and CPU, neither hits 70 °C. The airflow is unbelievable.

HerbertVerified buyer
H9 Flow RGB
See review