NZXT H2 Flow (2026) With PCIe 5.0 Riser Cable Mini-ITX Case - Black

Key Features:

• 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.

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.

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.

Cooling, in Full View

Supports up to a 280 mm radiator, showcasing LCD coolers through a hybrid glass-and-mesh panel.

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.

Specifications

General

• Enclosure Type : Small form factor case

• Motherboard Support : Mini-ITX

• Rear-Connecting Motherboard Support : No

• Power Supply Type : SFX, SFX-L

• Materials : Steel, tempered glass

Dimensions

• Dimensions (H x W x D) : 433.6 x 181 x 263 mm (17.1 x 7.1 x 10.4 in)

• Volume : 20.7 L

• Weight : 4.55 kg (10.0 lb)

Clearance

• CPU Cooler Height : Up to 75 mm (3 in)

• GPU Length : Up to 331 mm (13 in)

• GPU Thickness : Up to 65 mm (2.6 in)

• GPU Width : Up to 150 mm (5.9 in)

• PSU Length : Up to 130 mm (5.1 in)

• Front Radiator + Fan Thickness : Up to 60 mm (2.4 in)

Front I/O

• USB 3.2 Type-A : 2

• USB 3.2 Gen 2x2 Type-C : 1

• Headset Jack : 1

Expansion & Drives

• Expansion Slots : 3 (vertical)

• 2.5" Drive Bays : 2 (Up to 8.5 mm)

• 3.5" Drive Bays : 0

Cooling Support

• Front Fans : 2 x 120 mm / 2 x 140 mm

• Top Fans : 2 x 120 mm

• Front Radiator : Up to 280 mm

Included Fan Specs

• Model : F120Q (Case Version)

• Quantity : 2

• Speed : 1,350 ± 150 RPM

• Airflow : 60.2 CFM

• Static Pressure : 1.05 mmH₂O

• Noise Level : 24.1 dBA

• Fan Connector : 3-pin

Cable Management

• Fixed Velcro Straps : Yes

• Included Zip Ties : Yes

Riser Cable

• Compatibility : PCIe Gen 5.0 x16

• Length : 260 mm

Product Info

• Model Number : CI-H21FB-01 (Black)