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Compare NZXT H2 Flow vs Fractal Design Epoch Black Solid

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

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NZXT H2 Flow

Fractal Design Epoch Black Solid

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Brand

NZXT

Brand

Fractal Design

Model

CI-H21FB-01

Model

FD-C-EPO1A-01

Release Date

📅 February 2026

Release Date

📅 July 2025

* First availability for purchase, it may not correspond to the actual market launch date.

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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 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

0

External 3.5" Drive Bays

0

External 3.5" Drive Bays

0

Internal 2.5" Drive Bays

2

Internal 2.5" Drive Bays

2

Internal 3.5" Drive Bays

0

Internal 3.5" Drive Bays

2

Motherboard Compatibility

Mini ITX

Motherboard Compatibility

ATX, Micro ATX, 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 3.2 Gen 1 Type A, USB 3.2 Gen 2x2 Type C

Dimensions

263 mm x 181 mm x 435 mm

Dimensions

447 mm x 215 mm x 469 mm

Volume

21 L

Volume

45 L

Max VGA length allowance

331 mm

Max VGA length allowance

372 mm

Expansion Slots

3

Expansion Slots

7

Back Connect Support

No

Back Connect Support

No

-

Options (2)

	Black - TG Tempered glass $109.99
	White - RGB Tempered Glass RGB $126.70

Comparison and key differences summary

Reasons to buy the NZXT H2 Flow:

Newer Product, it was released around 7 months later

Reasons to buy the Fractal Design Epoch Black Solid:

27% cheaper, you can save $40.00
+2 internal 3.5" bays
Additional VGA length allowance (+41.00mm)
+4 Expansion slots
Supports the following motherboard formats: ATX, Micro ATX
Much more space available (+54% total case volume)

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