H2 Flow

Name: H2 Flow
Brand: NZXT
Price: 149.99 USD
Availability: InStock

Mini-ITX Airflow Case

New

$149.99

Series: Cases

Color:

Variant

Key Specs

Dimensions: 435 × 181 × 263 mm / 20.78 L
Max GPU Length: 331 mm
Max Radiator Length: 280 mm
Motherboard Sizes: Mini-ITX
Included Fans: 2× F120Q CV (3-pin DC)

Inside the Box

H2 Flow case
Pre-installed F120Q (CV) x2
#6-32 x 5 mm screw for motherboard x4
#6-32 x 6 mm hex washer head screw for PSU x4
CB5 x 10 mm screw for fans x8
Cable ties x10
User guide

Warranty & Return Policy

NZXT Product Warranty Length click here
NZXT.com Store Returns/Exchange Policy

Eligible products qualify for a refund or exchange only with an authorized RMA number and the item is returned to the NZXT.com Store inventory within 30 days of purchase. Returns are not allowed beyond 30 days of the purchase date.

The NZXT.com Store reserves the right to deny any return or exchange. Refunds will be credited to the original method of payment. To initiate a return, simply submit a request.

Resources

Manuals & Documentation

H2 Flow

$149.99

Overview

The H2 Flow is a mighty, compact vertical mini-ITX case designed to save space while showcasing top-tier components. Smart cable management, tool-less access, dual top fans, and a premium PCIe 5.0 riser cable make the building experience fast and simple.

Liquid Cooling Support: Handles up to a 280 mm radiator, ensuring lower temperatures so system performance consistently thrives.
331 mm GPU Capacity: Fits modern graphics cards with ease, delivering top-tier power in a clean, compact 20.7 L footprint.
Ultra-Fine Mesh Panels: Mesh on all sides maximizes air intake while filtering dust, keeping core components clear and running optimally.
Hybrid Glass-and-Mesh Side: Unique two-piece panel features tempered glass and mesh, displaying the build without compromising thermal efficiency.
Two F120Q CV (3-pin DC) Fans Included: Two pre-installed 120 mm fans on the top deliver convenient and immediate exhaust.
Tool-Less Access Panels: Panels pop off without tools, making every upgrade, cleaning session, or adjustment quick and completely seamless.
Integrated Cable Routing: Built-in routing points and included Velcro straps simplify organization, leading to a much tidier look and superior internal airflow.
PCIe 5.0 Riser Cable: A premium riser cable is included, making vertical GPU mounting easy while providing reliable, lightning-fast bandwidth.

Mighty View. Mini Case.

The H2 Flow redefines compact power by visualizing it, packing high-end components and liquid cooling support into a sleek vertical design that frees your desk space. Every detail is engineered to simplify your build and keep your system cool and quiet.

Compact Size, Full Power

The 20.7 L vertical layout saves desk space, fitting full-power features in a footprint smaller than a standard sheet of paper.

Two F120Q Fans

Get convenient, quiet airflow with two F120Q CV (3-pin DC) 120 mm fans pre-mounted and ready to work on the top panel.

PCIe 5.0 Riser Cable

An included premium PCIe 5.0 riser cable ensures clean GPU mounting while providing reliable, lightning-fast bandwidth.

Built For Liquid Cooling

The hybrid glass-and-mesh panel puts LCD screen coolers on full display, with support of up to a 280 mm radiator for optimal performance.

Spacious GPU Support

Accommodating graphics cards up to 331 mm, it delivers strong performance and steady high frame rates, all while maintaining efficient airflow and room to spare.

High-Airflow Panels

Ultra-fine mesh ensures steady airflow while keeping dust out for smooth, reliable performance.

Effortless Building

Building and maintenance are made simple with tool-less panels and smart wire management interior.

Tech Specs

Height

435 mm (17.1 in)

Width

181 mm (7.1 in)

Depth

263 mm (10.4 in)

Weight

4.55 kg (10.03 lb)

Volume

20.7 L

Enclosure Type

Small Form Factor Case

Motherboard Compatibility

Mini-ITX

Rear-Connecting Motherboard Support (BTF, Project Zero)

Power Supply Type

SFX, SFX-L

Materials

Steel, tempered glass

Total Fan Mounts

4 x 120 mm / 2 x 140 mm

Front

2 x 120 mm / 2 x 140 mm

Top

2 x 120 mm

Front

Up to 280 mm

CPU Cooler Height

Up to 75 mm

GPU Length

Up to 331 mm

GPU Thickness

Up to 65 mm

GPU Width

Up to 150 mm

PSU Length

Up to 130 mm

Front Radiator + Fan Thickness

Up to 60 mm

Front

Steel (mesh)

Right Side

Steel (solid and mesh)

Left Side

Tempered glass and mesh panel

USB 3.2 Type-A

USB 3.2 Gen2x2 Type-C

Headset Jack

Standard-Vertical

2.5"

2 (Up to 8.5 mm)

3.5"

Fixed Velcro Straps

Yes

Included Zip Ties

Yes

Compatibility

PCIe Gen 5.0 x16

Length

260 mm

Model

F120Q (Case Version)

Quantity

Speed

1,350 ± 150 RPM

Airflow

60.2 CFM

Static Pressure

1.05 mmH2O

Noise

24.1 dBA

Fan Connector

3-pin

Warranty

2 Years

Model Number

CI-H21FB-01

UPC

810074848404

EAN

5056547208800

Frequently Asked Questions

Can I install a full-sized graphics card?

Yes. The H2 Flow supports 3-slot graphics cards up to 65 mm thick and 331 mm in length, including the NVIDIA GeForce RTX 5090 Founders Edition (304 mm) and AMD Radeon RX 9070 XT (288–330 mm).

What kind of cooling does the case support?

The maximum CPU cooler height is 75 mm. However, due to the tempered glass panel directly in front of the CPU, we do not recommend using air coolers. The H2 Flow is designed for liquid coolers with LCD screens, such as the Kraken Elite RGB, supporting front-mounted radiators up to 280 mm.

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