Compare Cases

Compare Cooler Master MasterBox Q300P mATX vs NZXT H3 Flow White

Cooler Master MasterBox Q300P mATX and NZXT H3 Flow White are both cases with the same Internal 3.5" Drive Bays (1), Motherboard Compatibility (Micro ATX, Mini ITX) and Expansion Slots (4). The main differences are in Internal 2.5" Drive Bays, Front Panel I/O, Dimensions and Volume.
Save comparison
Prices
(Change region)
Out of Stock
Free shipping
Prices
(Change region)
In Stock
In Stock
Free shipping
In Stock
+ $5.99 Shipping
Show 2 more offers
* Pangoly may earn a commission when you use one of the links to make a purchase. (Disclosure)
* Product prices and availability are subject to change frequently. Any price and availability information displayed on Amazon at the time of purchase will apply.
Brand
Cooler Master
Brand
NZXT
Model
MCB-Q300P-KANN-S02
Model
  • CC-H31FW-01
  • CC-H31FW-02
Release Date
-
Release Date
📅 May 2025
* First availability for purchase, it may not correspond to the actual market launch date.
User reviews
★★★★☆
(17 reviews)
User reviews
Price history
View Details ►
Price history
View Details ►
Compatible PC parts
Compatible PC parts
Type
MicroATX Mini Tower
Type
MicroATX Mid Tower
Color
Black
Color
White
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
1
Internal 3.5" Drive Bays
1
Internal 3.5" Drive Bays
1
Motherboard Compatibility
Micro ATX, Mini ITX
Motherboard Compatibility
Micro ATX, Mini ITX
Front Panel I/O
USB 3.2 Gen 1 Type A
Front Panel I/O
USB 3.2 Gen 1 Type A, USB 3.2 Gen 2x2 Type C
Dimensions
450 mm x 230 mm x 450 mm
Dimensions
389 mm x 225 mm x 400 mm
Volume
47 L
Volume
35 L
Max VGA length allowance
360 mm
Max VGA length allowance
317 mm
Max VGA length allowance (w/o HDD cage)
-
Max VGA length allowance (w/o HDD cage)
377 mm
Expansion Slots
4
Expansion Slots
4
Back Connect Support
No
Back Connect Support
Yes

Comparison and key differences summary

Reasons to buy the Cooler Master MasterBox Q300P mATX:

  • +1 internal 2.5" bays
  • Additional VGA length allowance (+43.00mm)
  • Moderately more space available (+25% total case volume)

Buy now

Reasons to buy the NZXT H3 Flow White:

  • 83% cheaper, you can save $275.81
  • Supports back-connect
  • Supports the following front panel USB ports: USB 3.2 Gen 2x2 Type C

Buy now

Have you found incorrect information on this page? Contact us and we will fix it as soon as possible.

Trending comparisons (Cases)

x