NZXT H3 Flow MATX – Budget Case with Great Airflow

About the NZXT H3 Flow MATX

The NZXT H3 Flow MATX is a mid-tower case built for builders who prioritize cooling performance. The front mesh panel provides unrestricted airflow to keep temperatures low during gaming or productivity workloads. It supports ATX, Micro-ATX, and Mini-ITX motherboards for maximum flexibility. This is a PC case for gaming enthusiasts who want NZXT's proven H-series design without spending on premium features they don't need.

What This NZXT H3 Flow Does for You

This case delivers the best budget PC case with good airflow performance in its price range. The front mesh allows cool air to flow directly to your components without restriction. 377mm GPU clearance accommodates cards like the RTX 5070 Ti, RTX 5080, or RX 7800 XT without clearance concerns. The 240mm top radiator support means you can install high-performance AIO coolers for excellent CPU temperatures. Seven expansion slots provide room for multiple GPUs or capture cards if needed. The tempered glass side panel shows off your components while the PSU shroud hides cables for a clean look. USB-C on the front panel gives you fast connectivity for external SSDs and modern peripherals.

Proven Airflow Design

NZXT's H-series Flow cases have earned their reputation for excellent thermals. The front mesh panel removes the airflow restrictions common in budget cases. This design keeps your GPU and CPU cooler, which means quieter fan speeds and longer component life. The case supports up to six 120mm fans total for maximum cooling potential. Cable routing channels behind the motherboard tray keep builds tidy even for first-timers.

Perfect For

• First-time builders creating custom PC Singapore builds who need reliable cooling without complexity. The front mesh design just works without tweaking.
• Gamers running mid-range to high-end GPUs who want to avoid thermal throttling. Better airflow means consistent framerates during long sessions.
• Streamers and content creators who need stable temperatures during encoding workloads. The 280mm radiator support handles CPU-intensive tasks.
• System upgraders replacing old cases with poor airflow. The H3 Flow brings modern thermal performance without requiring a complete rebuild.

Why Buy from Mansa Computers

• 2-year Singapore warranty with NZXT service support
• Fast WhatsApp inquiry response
• Open 7 days a week for support
• Home delivery available

Technical Specifications Summary

Form Factor
Micro-ATX, Mini-ITX

Side Panel
Tempered Glass

GPU Clearance
377mm

Radiator Support
240mm (top), 280mm (front)

Front Panel
Mesh (optimized airflow)

Front I/O
USB-C, USB 3.2 Type A

Expansion Slots
7 slots

The NZXT MATX delivers airflow-focused design from a trusted brand. If you're building a gaming PC that needs to stay cool without expensive extras, this case handles it. Ready to start your build? Add it to cart or WhatsApp us with questions.

Model
NZXT H3 Flow

Case Type
Micro-ATX Tower

Dimensions (H x W x D)
400 x 225 x 389 mm

Volume
35 L

Weight
4.8 kg (10.58 lb)

Motherboard Support
Micro-ATX, Mini-ITX

Materials
SGCC steel, clear tempered glass (white), tinted tempered glass (black)

CPU Cooler Height
170 mm

GPU Clearance
Up to 377 mm (no front fans)
Up to 352 mm (with front fans)
Up to 317 mm (with radiator + 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

Front I/O Ports
1 x USB 3.2 Type-A
1 x USB 3.2 Gen2x2 Type-C

Expansion Slot
4 Std

Fan Support
Front: 2 × 140/120 mm
Top: 2 × 120/140 mm
Bottom: 2 x 120 mm
Rear: 1 × 120 mm (F120Q (CV) included)

Radiator Support
Front: up to 280 mm
Top: up to 240 mm

Fan Model
F120Q (CV)

Fan Speed
1,350 ± 150 RPM

Fan Airflow
60.2 CFM

Fan Static Pressure
1.05 mmH2O

Fan Noise
24.1 dBA

Fan Connector
3-pin

2 YEARS DISTRIBUTOR WARRANTY

Tech Dynamic Pte Ltd
514 Chai Chee Ln, #05-09, Singapore 469029
Contact: 6717 3000

Frequently Asked Questions About NZXT H3 Flow MATX

Does the NZXT H3 Flow come with fans?

Yes, it includes fans pre-installed. Check with us for the exact configuration, as NZXT sometimes updates fan layouts. You can add more fans if needed for extra cooling.

Can I install a 360mm AIO in the NZXT H3 Flow?

Yes, the top supports 360mm radiators. You can mount coolers like the NZXT Kraken 360 or Corsair H150i for excellent CPU cooling performance.

Will an RTX 5080 fit in this case?

Yes, the 365mm GPU clearance handles most RTX 5080 and RX 7900 XT models. Check your specific card length, but most triple-fan designs fit comfortably.

What's covered under the 2-year NZXT warranty?

NZXT covers manufacturing defects on the case structure, panels, and included components. If you have issues with build quality or included fans, NZXT Singapore handles warranty claims.

Is this better than the Cooler Master Q300L?

The H3 Flow has better front airflow thanks to the mesh panel. The Q300L costs less but has more restrictive airflow. For cooling performance, the H3 Flow wins.

How long will it take to receive my purchase?

Standard Shipping - 3 to 5 days
Express Shipping - 1 to 2 days

Can I opt for store pickup?

Yes, we are open daily for collection from 11 AM - 6.30 PM.

Address: 1 Ubi View #01-22, Focus One Building Singapore 408555 (Door located nearest to carpark exit gantry)

We will contact you once your order is ready for collection!