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Compare MSI MPG Velox 300R Airflow PZ vs Cooler Master HAF II 500

MSI MPG Velox 300R Airflow PZ and Cooler Master HAF II 500 are both cases with the same Front Panel I/O (USB 3.2 Gen 1 Type A, USB 3.2 Gen 2x2 Type C). The main differences are in Internal 2.5" Drive Bays, Internal 3.5" Drive Bays, Motherboard Compatibility and Dimensions.
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In Stock
$119.99
Last updated 25 minutes ago.
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Prices
(Change region)
In Stock
$199.99
Last updated 25 minutes ago.
In Stock
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Brand
MSI
Brand
Cooler Master
Model
  • MPG VELOX 300R AIRFLOW PZ
  • 306-7G27R21-JA4
Model
H500G2-KGNN-S00
Release Date
📅 March 2025
Release Date
📅 July 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
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
4
Internal 2.5" Drive Bays
0
Internal 3.5" Drive Bays
2
Internal 3.5" Drive Bays
3
Motherboard Compatibility
ATX, EATX, Micro ATX, Mini ITX
Motherboard Compatibility
ATX, EATX, Micro ATX, Mini DTX, Mini ITX, SSI CEB
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 235 mm x 518 mm
Dimensions
557 mm x 262 mm x 548 mm
Volume
59 L
Volume
80 L
Max VGA length allowance
400 mm
Max VGA length allowance
430 mm
Expansion Slots
7
Expansion Slots
8
Back Connect Support
Yes
Back Connect Support
No

Comparison and key differences summary

Reasons to buy the MSI MPG Velox 300R Airflow PZ:

  • 41% cheaper, you can save $82.11
  • Supports back-connect
  • +4 internal 2.5" bays

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Reasons to buy the Cooler Master HAF II 500:

  • Newer Product, it was released around 16 months later
  • +1 internal 3.5" bays
  • Additional VGA length allowance (+30.00mm)
  • +1 Expansion slots
  • Supports the following motherboard formats: Mini DTX, SSI CEB
  • Moderately more space available (+26% total case volume)

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