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Compare NZXT H2 Flow vs Antec One

The main differences between NZXT H2 Flow and Antec One are in External 5.25" Drive Bays, Internal 2.5" Drive Bays, Internal 3.5" Drive Bays and Motherboard Compatibility.
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Pangoly Score (How do we rate?)
-
Pangoly Score (How do we rate?)
82
Brand
NZXT
Brand
Antec
Model
CI-H21FB-01
Model
One
Release Date
📅 February 2026
Release Date
📅 February 2012
* First availability for purchase, it may not correspond to the actual market launch date.
User reviews
User reviews
★★★★☆
(122 reviews)
Price history
View Details ►
Price history
View Details ►
Compatible PC parts
Compatible PC parts
Pros
-
Pros
  • Build quality
  • Access to CPU backplate
  • Two 2.5'' bays
  • 2x USB 3.0 ports
  • Dust filter for PSU
Cons
-
Cons
  • No dust filters for the fans
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
3
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
6
Motherboard Compatibility
Mini ITX
Motherboard Compatibility
ATX, Micro ATX, 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 3.2 Gen 1 Type A
Dimensions
263 mm x 181 mm x 435 mm
Dimensions
436 mm x 208 mm x 487 mm
Volume
21 L
Volume
44 L
Max VGA length allowance
331 mm
Max VGA length allowance
266 mm
Expansion Slots
3
Expansion Slots
8
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 14 years later
  • +1 internal 2.5" bays
  • Additional VGA length allowance (+65.00mm)
  • Supports the following front panel USB ports: USB 3.2 Gen 2x2 Type C

Buy now

Reasons to buy the Antec One:

  • +3 external 5.25" bays
  • +6 internal 3.5" bays
  • +5 Expansion slots
  • Supports the following motherboard formats: ATX, Micro ATX, Thin Mini ITX
  • Much more space available (+53% total case volume)

Buy now

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