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NZXT - H3 Flow Micro-ATX High-Airflow PC Case - Black

Model: CC-H31FB-01
SKU: 6629597
Sold byBest Buy

Customers are saying

Customers have good things to say about the excellent airflow and solid build quality of this case. Users appreciate the convenient size for mATX builds, noting that the internal space and cable management options make the assembly process straightforward. While the case accommodates large components effectively, some users noted that it does not come with pre-installed front fans.

Generated by AI based on customer reviews.

Color

Black

Features

  • Space-Saving Size

    A space-efficient micro-ATX chassis accommodates standard high-performance components without compromise.

  • High-Airflow Design

    Ultra-fine steel mesh on the panels and PSU shroud maximizes airflow while effectively filtering dust.

  • Extensive Cooling Support

    Supports up to a 280 mm radiator at the front, a 240 mm radiator at the top, and up to seven fans for powerful cooling performance.

  • Full-Size Graphics Cards

    Fits GPUs up to 377 mm (without front fans), 352 mm (with front fans), and 317 mm (with front radiator and fans installed).

  • Pre-Installed Rear Fan

    Comes equipped with an F120Q (CV) fan at the rear for efficient exhaust airflow right out of the box.

  • Easy Cable Management

    Integrated cable channels and tie-down points simplify cable routing for a clean and organized build.

  • Back-Connect Motherboard Ready

    Fully compatible with rear-connect motherboards like ASUS BTF and MSI Project Zero, enabling a sleek, cable-free appearance.

  • Tool-Free Entry

    Removable top, front, and side panels allow quick, easy access for upgrades and cleaning—no tools required.

Specifications

  • Motherboard Form Factor
    microATX, Mini-ITX
    Maximum GPU Length
    377 millimeters
    Product Height
    15.75 inches
    Product Width
    10.04 inches
    Product Depth
    15.32 inches
    Window Panel(s)
    Side
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Reviews

Rating 4.8 out of 5 stars with 57 reviews

5 star rating. 51 reviews4 star rating. 4 reviews3 star rating. 1 review2 star rating. 1 review
98% would recommend to a friend
Customers are sayingCustomers have good things to say about the excellent airflow and solid build quality of this case. Users appreciate the convenient size for mATX builds, noting that the internal space and cable management options make the assembly process straightforward. While the case accommodates large components effectively, some users noted that it does not come with pre-installed front fans.
This summary was generated by AI based on customer reviews.
  • Airflow (22)
  • Build Quality (16)
  • Size (12)
  • Cable Management (8)
  • Internal Space (7)
  • Fan Support (3)

Customer Images

The vast majority of our reviews come from verified purchases. Reviews from customers may include My Best Buy members, employees, and Tech Insider Network members (as tagged). Select reviewers may receive discounted products, promotional considerations or entries into drawings for honest, helpful reviews.

  • Rated 4 out of 5 stars

    Good for my needs, might not be ideal for everyone

    The case is fairly easy to build in and the airflow works nicely. The front panel and side glass panel snap into place nicely, and the back is secured by some thumb screws that make it easy to access. It's a nice size for an mATX case; it's smaller than ATX cases, but it's not quite so small that you have to be choosy with parts and worry about managing cables. There's a box that has the accessories you need (motherboard screws, HDD/SSD screws, zipties), and the cable management is pretty good, although the mesh area on the bottom means you can see any cables that are in the PSU area. A couple points of concern: The case has an area that can house one 3.5" hard drive or two 2.5" storage drives. It also has an area that can house a 2.5" storage drive, but the drive MUST be installed before the motherboard is put into the case. The PSU fan MUST face upward into the case. Most cases allow you to install the PSU with the fan facing in or facing out (which is usually preferred), but this case has a solid bottom and won't even let you install the PSU the other way. I personally don't mind, since having it face up prevents any issues with carpet, but it's unusual so it's worth noting.

    Posted by MitchellF

  • Rated 5 out of 5 stars

    Go To MATX

    Great MATX case. Full support for ATX power supplies made my case swap from a larger case a breeze. Support for 140mm fans is also a nice plus keeping noise and temps down.

    Posted by JosephH

  • Rated 5 out of 5 stars

    A nicely designed and easy to work with mATX case

    There's plenty of space to work in, lots of precut slots make cable management easy, and it's very easy to clean out the mesh panels. I wish they sold a version with a metal side panel, but it's easy to cover up the tempered glass panel with a vinyl decal of your choice.

    Posted by CHARLEST

  • Rated 5 out of 5 stars

    Great case for a micro atx build.

    This case was exactly what I was looking for when I needed a new case to make my old pc look better. Everything fit in perfect, it was pretty easy to build in, and it looks great. The only issue I have is that it is awkward to carry once you are done building as every panel is pretty flat. Won’t matter once you get it in place though. Overall a really nice case.

    Posted by ANGEL

  • Rated 5 out of 5 stars

    Nice, small, cool-looking case.

    Small, but lots of airflow. Easy to build in. Excellent case! Attractive design.

    Posted by Gamerplayer1

See all customer reviews

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Pros for NZXT - H3 Flow Micro-ATX High-Airflow PC Case - Black
Airflow, Cable Management, Internal Space, Build Quality, SizeAirflow, Cable Management, Overall Performance, Ease of Assembly, DesignAirflow, Cable Management, Case Design, Internal Space, AppearanceAirflow, Case Design, Appearance, Cable Management, Ease of Installation
Cons for NZXT - H3 Flow Micro-ATX High-Airflow PC Case - Black
Fan SupportSize, Fan Count, Dust ResistanceWeightThere were no cons for this product—

Specs

Questions & Answers

  • How many fans are included with this PC case?

    This PC case includes one fan.

    This question and answer was generated by AI based on customer and product data.

  • What is the maximum GPU length supported by this PC case?

    This PC case supports a maximum GPU length of 377 millimeters.

    This question and answer was generated by AI based on customer and product data.

  • Does this PC case support liquid cooling?

    Yes, this PC case is liquid cooling ready.

    This question and answer was generated by AI based on customer and product data.

  • Does this PC case have an integrated cable management system?

    Yes, this PC case has integrated cable channels and tie-down points.

    This question and answer was generated by AI based on customer and product data.

  • What type of motherboard form factor does this PC case support?

    This PC case supports microATX motherboard form factor.

    This question and answer was generated by AI based on customer and product data.
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