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Compare NZXT H2 Flow vs In Win D Frame Mini Black

NZXT H2 Flow and In Win D Frame Mini Black are both cases with the same Internal 2.5" Drive Bays (2) and Motherboard Compatibility (Mini ITX). The main differences are in Internal 3.5" Drive Bays, Front Panel I/O, Dimensions and Volume.
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Brand
NZXT
Brand
In Win
Model
CI-H21FB-01
Model
D-Frame Mini Black
Release Date
📅 February 2026
Release Date
-
* First availability for purchase, it may not correspond to the actual market launch date.
User reviews
User reviews
Price history
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Price history
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Compatible PC parts
Compatible PC parts
Type
Mini ITX Tower
Type
Mini ITX Tower
Color
Black
Color
Black/Red
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
3
Motherboard Compatibility
Mini ITX
Motherboard Compatibility
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
406 mm x 228 mm x 500 mm
Volume
21 L
Volume
46 L
Max VGA length allowance
331 mm
Max VGA length allowance
340 mm
Expansion Slots
3
Expansion Slots
2
Back Connect Support
No
Back Connect Support
No
-

Comparison and key differences summary

Reasons to buy the NZXT H2 Flow:

  • +1 Expansion slots
  • Supports the following front panel USB ports: USB 3.2 Gen 2x2 Type C

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Reasons to buy the In Win D Frame Mini Black:

  • +3 internal 3.5" bays
  • Additional VGA length allowance (+9.00mm)
  • Much more space available (+55% total case volume)

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