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Compare NZXT H2 Flow vs Cooler Master TD300 Mesh

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  3. NZXT H2 Flow 🆚 Cooler Master TD300 Mesh
NZXT H2 Flow and Cooler Master TD300 Mesh are both cases with the same Internal 2.5" Drive Bays (2). The main differences are in Internal 3.5" Drive Bays, Motherboard Compatibility, Front Panel I/O and Dimensions.
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NZXT H2 Flow SFF Mini-ITX Black Tempered Glass CI-H21FB-01
NZXT H2 Flow
Cooler Master TD300 Mesh Micro-ATX Tower, Mesh Front, Tempered Glass TD300-KGNN-S00
Cooler Master TD300 Mesh
Prices
(Change region)
In Stock
Free shipping
$149.99
Out of Stock
$189.14
Prices
(Change region)
In Stock
Free shipping
$83.99
Out of Stock
$108.62
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Brand
NZXT
Brand
Cooler Master
Model
CI-H21FB-01
Model
TD300-KGNN-S00
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
View Details ►
Price history
View Details ►
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
MicroATX Mini 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
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
Dimensions
263 mm x 181 mm x 435 mm
Dimensions
433 mm x 210 mm x 420.5 mm
Volume
21 L
Volume
38 L
Max VGA length allowance
331 mm
Max VGA length allowance
344 mm
Expansion Slots
3
Expansion Slots
4
Back Connect Support
No
Back Connect Support
No
-

Comparison and key differences summary

Reasons to buy the NZXT H2 Flow:

  • Supports the following front panel USB ports: USB 3.2 Gen 2x2 Type C

Buy now

Reasons to buy the Cooler Master TD300 Mesh:

  • 44% cheaper, you can save $66.00
  • +2 internal 3.5" bays
  • Additional VGA length allowance (+13.00mm)
  • +1 Expansion slots
  • Supports the following motherboard formats: Micro ATX
  • Much more space available (+46% total case volume)

Buy now

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