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Compare NZXT H2 Flow vs Phanteks Enthoo Pro 2 Closed Window

The main differences between NZXT H2 Flow and Phanteks Enthoo Pro 2 Closed Window are in Internal 2.5" Drive Bays, Internal 3.5" Drive Bays, Motherboard Compatibility and Front Panel I/O.
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Brand
NZXT
Brand
Phanteks
Model
CI-H21FB-01
Model
PH-ES620PC_BK01
Release Date
📅 February 2026
Release Date
📅 July 2020
* First availability for purchase, it may not correspond to the actual market launch date.
User reviews
User reviews
★★★★★
(10 reviews)
Price history
View Details ►
Price history
View Details ►
Compatible PC parts
Compatible PC parts
Type
Mini ITX Tower
Type
ATX Full 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
11
Internal 3.5" Drive Bays
0
Internal 3.5" Drive Bays
12
Motherboard Compatibility
Mini ITX
Motherboard Compatibility
ATX, EATX, Micro ATX, Mini ITX, SSI EEB
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 2 Type C
Dimensions
263 mm x 181 mm x 435 mm
Dimensions
240 mm x 580 mm x 560 mm
Volume
21 L
Volume
78 L
Max VGA length allowance
331 mm
Max VGA length allowance
503 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 6 years later
  • Supports the following front panel USB ports: USB 3.2 Gen 2x2 Type C

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Reasons to buy the Phanteks Enthoo Pro 2 Closed Window:

  • +9 internal 2.5" bays
  • +12 internal 3.5" bays
  • Additional VGA length allowance (+172.00mm)
  • +5 Expansion slots
  • Supports the following motherboard formats: ATX, EATX, Micro ATX, SSI EEB
  • Supports the following front panel USB ports: USB 3.2 Gen 2 Type C
  • Hugely more space available (+73% total case volume)

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