NZXT H3 Flow PC Case - Black

Name: NZXT H3 Flow PC Case - Black
Brand: NZXT
SKU: chei4jh3be
Availability: InStock

The H3 Flow micro-ATX case combines a space-efficient design with high-performance capability. Des...

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Colour

Black White

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Nzxt Black H3 Flow Tempered Glass Micro-Atx Gaming Pc Case

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Product Information

Full details

The NZXT H3 Flow PC case is designed for PC builders seeking a balance of space efficiency and high-performance cooling, particularly those utilizing micro-ATX or Mini-ITX motherboards. Its key benefit is its ability to accommodate full-sized components in a compact design, thanks to its high-airflow design and extensive cooling support. However, it's important to note that the micro-ATX form factor may limit expansion options compared to larger cases. This guide will walk you through the features, setup, and care of your NZXT H3 Flow.

All features

Colour	Black
Model Part Number	CC-H31FB-01
Brand	NZXT

Extended Product Information

FAQs

What size motherboard does the H3 Flow support?

The H3 Flow supports micro-ATX and Mini-ITX motherboards.

How many fans can I install?

You can install up to seven fans: two 140/120mm front, two 140/120mm top, two 120mm bottom, and one 120mm rear.

Does the H3 Flow come with any fans?

Yes, it includes one 120mm fan pre-installed in the rear.

What size radiators can the case accommodate?

It supports a 280 mm radiator in the front and a 240 mm radiator on top.

What is the maximum GPU length?

The maximum GPU length is 377 mm without front fans, 352 mm with front fans, or 317 mm with front radiator and fans installed.

Is there a side window?

Yes, the H3 Flow features a tempered glass side panel.

Does the case support back-connect motherboards?

Yes, it is compatible with ASUS BTF and MSI Project Zero motherboards.

How do I access the case panels?

The top, front, and side panels are removable without tools.

Troubleshooting

PC won't power on.

Check the power supply switch, ensure the power cord is securely connected to both the case and the wall outlet, and verify all internal power connections (24-pin, CPU, and GPU) are properly seated.

Overheating issues.

Ensure all fans are running correctly, and the front and top mesh panels are free of dust. Verify that the CPU cooler is properly installed and making good contact. Consider adding more fans or upgrading the cooling solution.

Fans are noisy.

Check if the fans are obstructed by any cables or components. If the noise persists, consider replacing the fans with quieter models.

USB ports not working.

Check the front panel USB connector is properly connected to the motherboard. Make sure the motherboard drivers are up to date.

Pros and Cons

Pros

Compact design ideal for smaller spaces.
Excellent airflow due to mesh panels and fan support.
Supports large GPUs.
Good cooling options with radiator support.
Easy to build in with tool-free access and cable management features.
Modern design with a tempered glass side panel.

Cons

Micro-ATX form factor limits expansion slots.
May require additional fan purchases for optimal cooling.
Front panel USB ports may be limited.
Cable management, while improved, still requires some planning.
The included rear fan is the only fan included.

Setup, Compatibility & Care

Component Compatibility: Ensure your motherboard is micro-ATX or Mini-ITX. Check the dimensions of your graphics card, CPU cooler, and power supply to ensure they fit within the case's specifications.
Installation: Install the motherboard, CPU, and RAM first. Then, mount your storage devices (SSDs or HDDs). Next, install your graphics card, followed by the power supply. Connect all necessary cables, utilizing the cable management features.
Cooling: Install fans or radiators as needed. Remember the case supports a 280 mm radiator in the front and a 240 mm radiator on top. Ensure proper airflow by positioning fans to draw in cool air from the front and bottom and exhaust hot air from the rear and top.
Cable Management: Route cables through the designated channels and use the provided tie-down points to keep them organized and out of the way of fans and other components. This improves airflow and aesthetics.
Cleaning: Regularly clean the dust filters (front, top, and bottom) to maintain optimal airflow. Use a soft, dry cloth to clean the exterior of the case. Avoid using harsh chemicals or abrasive cleaners.
Back-Connect Motherboard Compatibility: For ASUS BTF and MSI Project Zero motherboards, follow the manufacturer's specific instructions for cable routing and installation to take full advantage of the cable-free aesthetic.