NZXT H2 Flow vs Fractal Design Meshify 3 XL Black Solid Case Comparison

NZXT H2 Flow and Fractal Design Meshify 3 XL Black Solid are both cases with the same Front Panel I/O (USB 3.2 Gen 1 Type A, USB 3.2 Gen 2x2 Type C). The main differences are in Internal 2.5" Drive Bays, Internal 3.5" Drive Bays, Motherboard Compatibility and Dimensions.

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NZXT H2 Flow	Fractal Design Meshify 3 XL Black Solid
Prices (Change region) In Stock Free shipping $149.99 Out of Stock $189.14	Prices (Change region) In Stock Free shipping $184.99 In Stock Free shipping $184.99 In Stock $194.99
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Brand NZXT	Brand Fractal Design
Model CI-H21FB-01	Model FD-C-MES3X-01
Release Date 📅 February 2026	Release Date 📅 May 2025
* First availability for purchase, it may not correspond to the actual market launch date.
User reviews Add a product review	User 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 ►
Type Mini ITX Tower	Type ATX Full Tower
Color Black	Color Black
Includes Power Supply No	Includes Power Supply No
External 5.25" Drive Bays 0	External 5.25" Drive Bays 0
External 3.5" Drive Bays 0	External 3.5" Drive Bays 0
Internal 2.5" Drive Bays 2	Internal 2.5" Drive Bays 1
Internal 3.5" Drive Bays 0	Internal 3.5" Drive Bays 2
Motherboard Compatibility Mini ITX	Motherboard Compatibility ATX, EATX, Micro ATX, Mini ITX, SSI CEB, SSI EEB
Front Panel I/O USB 3.2 Gen 1 Type A, USB 3.2 Gen 2x2 Type C	Front Panel I/O USB 3.2 Gen 1 Type A, USB 3.2 Gen 2x2 Type C
Dimensions 263 mm x 181 mm x 435 mm	Dimensions 575 mm x 245 mm x 515 mm
Volume 21 L	Volume 73 L
Max VGA length allowance 331 mm	Max VGA length allowance 512 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:

19% cheaper, you can save $35.00
Newer Product, it was released around 9 months later
+1 internal 2.5" bays

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Reasons to buy the Fractal Design Meshify 3 XL Black Solid:

+2 internal 3.5" bays
Additional VGA length allowance (+181.00mm)
+4 Expansion slots
Supports the following motherboard formats: ATX, EATX, Micro ATX, SSI CEB, SSI EEB
Hugely more space available (+71% total case volume)