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Compare NZXT H2 Flow vs ASUS Prime AP303 TG BLACK

NZXT H2 Flow and ASUS Prime AP303 TG BLACK 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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+ €19.90 Shipping
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€110.03
Last updated 53 minutes ago.
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+ €7.99 Shipping
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Brand
NZXT
Brand
Asus
Model
CI-H21FB-01
Model
  • PRIME AP303 TG BLACK
  • 90DC00V0-B39010
Release Date
📅 February 2026
Release Date
📅 November 2025
* 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
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
1
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
485 mm x 215 mm x 425 mm
Volume
21 L
Volume
44 L
Max VGA length allowance
331 mm
Max VGA length allowance
360 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:

Buy now

Reasons to buy the ASUS Prime AP303 TG BLACK:

  • +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)

Buy now

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