NZXT H3 Flow Tempered Glass mATX Micro Tower Gaming Case - White
Features
The H3 Flow micro-ATX case combines a space-efficient design with high-performance capability. Designed to support full-sized components, 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 cleaning-no 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.

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.

Specifications
Technical Specifications
| Height (with feet) | 400 mm (15.75 in) |
|---|---|
| Width | 225 mm (8.86 in) |
| Depth | 389 mm (15.31 in) |
| Volume | 35.0 L |
| Weight | 4.8 kg (10.58 lb) |
| Enclosure Type | Micro-ATX Case |
| Motherboard Compatibility | Micro-ATX, Mini-ITX |
| Supports Rear-Connecting Motherboards (BTF, Project Zero) | Yes (Micro-ATX) |
| Materials | SGCC steel, clear tempered glass (white), tinted tempered glass (black) |
| CPU Cooler Height | 170 mm |
| GPU Length | Up to 377 mm (without front fans) / Up to 352 mm (with front fans) / Up to 317 mm (with front radiator and fans) |
| PSU Length | Up to 185 mm |
| Cable Routing Space | Up to 31.5 mm |
| Front Radiator + Fan Thickness | Up to 63 mm |
| Top Radiator + Fan Thickness | Up to 70 mm |
| USB 3.2 Type-A | 1 |
| USB 3.2 Gen2x2 Type-C | 1 |
| Standard | 4 |
| Vertical | 0 |
| 2.5" | 1+2 |
| 3.5" | 1 |
| Front | 2 x 120 mm / 2 x 140 mm |
| Top | 2 x 120 mm / 2 x 140 mm |
| Bottom | 2 x 120 mm |
| Rear | 1 x 120 mm (1 x F120Q (CV) included) |
| Front | Up to 280 mm |
| Top | Up to 240 mm |
| Model | F120Q (CV) |
| Speed | 1,350 ± 150 RPM |
| Airflow | 60.2 CFM |
| Static Pressure | 1.05 mmH2O |
| Noise | 24.1 dBA |
| Fan Connector | 3-pin |
| Brand | NZXT |
|---|---|
| Product Type | PC Parts |
Shipping Information
- Free NZ-wide shipping on orders over $299
- Standard delivery 2–5 business days
- Rural delivery may take an additional 1–2 days
- Same-day dispatch for orders placed before 2pm (weekdays)
Returns Policy
- 7-day returns on unused items in original packaging
- Faulty or damaged products covered under warranty
- Contact our support team to initiate a return





