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Compare ASUS Prime AP303 TG White vs NZXT H2 Flow

ASUS Prime AP303 TG White and NZXT H2 Flow 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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€87.99
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Brand
ASUS
Brand
NZXT
Model
  • PRIME AP303 TG White
  • 90DC00V3-B39010
Model
CI-H21FB-01
Release Date
📅 November 2025
Release Date
📅 February 2026
* 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
ATX Mid Tower
Type
Mini ITX Tower
Color
White
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
1
Internal 3.5" Drive Bays
0
Motherboard Compatibility
ATX, Micro ATX, 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, USB 3.2 Gen 2x2 Type C
Dimensions
485 mm x 215 mm x 425 mm
Dimensions
263 mm x 181 mm x 435 mm
Volume
44 L
Volume
21 L
Max VGA length allowance
360 mm
Max VGA length allowance
331 mm
Expansion Slots
7
Expansion Slots
3
Back Connect Support
No
Back Connect Support
No

Comparison and key differences summary

Reasons to buy the ASUS Prime AP303 TG White:

  • +1 internal 3.5" bays
  • Additional VGA length allowance (+29.00mm)
  • +4 Expansion slots
  • Supports the following motherboard formats: ATX, Micro ATX
  • Much more space available (+53% total case volume)

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Reasons to buy the NZXT H2 Flow:

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