NZXT H2 Flow vs Fractal Design Core 3000 Case Comparison

The main differences between NZXT H2 Flow and Fractal Design Core 3000 are in External 5.25" Drive Bays, Internal 2.5" Drive Bays, Internal 3.5" Drive Bays and Motherboard Compatibility.

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NZXT H2 Flow	Fractal Design Core 3000
Prices (Change region) In Stock Free shipping $149.99 Out of Stock $189.14	Prices (Change region) - Buy now
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Pangoly Score (How do we rate?) -	Pangoly Score (How do we rate?) 81
Brand NZXT	Brand Fractal Design
Model CI-H21FB-01	Model FD-CA-CORE-3000-USB3-BL
Release Date 📅 February 2026	Release Date 📅 December 2013
* First availability for purchase, it may not correspond to the actual market launch date.
User reviews Add a product review	User reviews ★★★★☆ (6 reviews) Add a product review
Price history View Details ►	Price history View Details ►
Compatible PC parts Motherboards ► Graphics Cards ► Power Supplies ► CPU Coolers ►	Compatible PC parts Motherboards ► Graphics Cards ► Power Supplies ► CPU Coolers ►
Pros -	Pros Three fans included Good build quality Supports long graphic cards New revision with USB 3.0 support on front I/O
Cons -	Cons Cable management could be better Not much space for tall cpu coolers
Type Mini ITX Tower	Type ATX Mid Tower
Color Black	Color Black
Includes Power Supply No	Includes Power Supply No
External 5.25" Drive Bays 0	External 5.25" Drive Bays 2
External 3.5" Drive Bays 0	External 3.5" Drive Bays 0
Internal 2.5" Drive Bays 2	Internal 2.5" Drive Bays 0
Internal 3.5" Drive Bays 0	Internal 3.5" Drive Bays 6
Motherboard Compatibility Mini ITX	Motherboard Compatibility ATX, Micro ATX, Mini DTX, Mini ITX, Thin Mini ITX
Front Panel I/O USB 3.2 Gen 1 Type A, USB 3.2 Gen 2x2 Type C	Front Panel I/O USB 2.0 Type A, USB 3.2 Gen 1 Type A
Dimensions 263 mm x 181 mm x 435 mm	Dimensions 487 mm x 267 mm x 549 mm
Volume 21 L	Volume 71 L
Max VGA length allowance 331 mm	Max VGA length allowance 270 mm
Max VGA length allowance (w/o HDD cage) -	Max VGA length allowance (w/o HDD cage) 420 mm
Expansion Slots 3	Expansion Slots 7
Back Connect Support No	Back Connect Support No

Comparison and key differences summary

Reasons to buy the NZXT H2 Flow:

Newer Product, it was released around 12 years later
+2 internal 2.5" bays
Additional VGA length allowance (+61.00mm)
Supports the following front panel USB ports: USB 3.2 Gen 2x2 Type C

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Reasons to buy the Fractal Design Core 3000:

+2 external 5.25" bays
+6 internal 3.5" bays
+4 Expansion slots
Supports the following motherboard formats: ATX, Micro ATX, Mini DTX, Thin Mini ITX
Supports the following front panel USB ports: USB 2.0 Type A
Hugely more space available (+71% total case volume)