Cooler Master MasterBoX Q300L
mATX, Mini-ITXOnly 2 pieces in stock
Colour2
Product details
The MasterBox Q300L is your straightforward alternative in Cooler Master's MasterBox Q series. This series can be compact, yet it stands out for its functionality and modularity without compromising thermal performance. Although its size may not suggest it at first glance, the MasterBox Q300L supports a standard ATX power supply, which is not often seen in this size. Due to various system configurations, the I/O panel can be positioned in six different locations, with three options on each side of the case. You can choose which setup fits your system best. The cubic design of the frame and the unique pattern on the magnetic dust filter will make the chassis stand out from the rest. The combination of practical design and a unique customizable appearance makes the MasterBox Q300L the perfect choice for office and home use.
PC case design | Mini Tower |
Number of 3.5" drive slots (internal) | 1x |
Max. length graphics card | 360 mm |
Max. height CPU cooler | 157 mm |
Max length of power supply | 160 mm |
PC case features | Side windows |
Item number | 8261151 |
Manufacturer | Cooler Master |
Category | PC case |
Manufacturer no. | MCB-Q300L-KANN-S00 |
Release date | 14.3.2018 |
Sales rank in Category PC case | 174 of 2999 |
Colour | Black |
Exact colour description | Black |
Material group | Metal, Plastic |
Material | Plastic, Steel |
PC case design | Mini Tower |
Form factor | Micro ATX (mATX), Mini-ITX |
Number of 3.5" drive slots (internal) | 1x |
"Number of 2.5"" drive slots" | 2x |
Number of expansion card slots | 4x |
Max. length graphics card | 360 mm |
Max. height CPU cooler | 157 mm |
Max length of power supply | 160 mm |
PC case features | Side windows |
Number of fans | 1x |
Number of fan slots | 6x |
Fan location | Bottom side |
Number of radiator mounts | 1 |
Radiator locations | Aspect |
Cooling properties | Water cooling possible |
Fan mount locations | 2x 140/120mm |
Fans included | 1x 120mm |
Fan mount locations | 1x 120mm |
Fan mount locations | 2x 120mm |
Country of origin | China |
CO₂-Emission | |
Climate contribution |
Scope of delivery | Cable management |
Height | 38.10 cm |
Length | 38.70 cm |
Width | 23 cm |
Weight | 3.70 kg |
Length | 43 cm |
Width | 28 cm |
Height | 45 cm |
Weight | 4.49 kg |
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Reviews & Ratings
Warranty score
How often does a product of this brand in the «PC case» category have a defect within the first 24 months?
Source: Digitec Galaxus- 18.Jonsbo0.6 %
- 18.Raijintek0.6 %
- 22.Cooler Master0.7 %
- 22.Enermax0.7 %
- 22.Intertech0.7 %
Warranty case duration
How many working days on average does it take to process a warranty claim from when it arrives at the service centre until it’s back with the customer?
Source: Digitec Galaxus- 5.Fractal1 day
- 5.Sharkoon1 day
- 10.Cooler Master2 days
- 10.Jonsbo2 days
- 10.Lian-Li2 days
Return rate
How often is a product of this brand in the «PC case» category returned?
Source: Digitec Galaxus- 22.AeroCool4.9 %
- 23.ASUS5.1 %
- 23.Cooler Master5.1 %
- 25.Zalman6 %
- 26.MSI7 %

