The MasterBoxQ300L is your straightforward option in the lineup of the brand new MasterBox Q-series from Cooler Master. A series that might be small in size but excels in functionality and modularity without compromising on the thermal performance.
Although the size wouldn't tell, the MasterBox Q300L supports a standard ATX PSU which we don't see often in the market with this size. Based on the different system setup, the I/O panel can be adjusted to six different locations, three options at each side of the case. You can decide which setup fits your system best.
Due to the cube design of the frame and special pattern design on the magnetic dust filter will make the chassis stand out from the rest. The combination of a practical design and the unique customizable outlook makes the MasterBox Q300L the perfect choice for office and home usage.
Features
- High Flexibility for System Building: The I/O panel can be adjusted to six different locations. On both side of the body you can install the I/O panel at the front, top or bottom.
- Minimized Dimension with ATX PSU Support: Despite the Micro-ATX form factor and the body depth and height of only 370mm x 370mm, the MasterBoxQ300L can accommodate a normal ATX PSU.
- Patterned Dust Filter: Special pattern on the dust filter creates a unique outlook for the chassis.
- Clean Routing Space: Behind the motherboard tray, it offers 28mm wide and spacy room for hidden cable management.
- Excellent Thermal Performance: The open design of the perforated front, top and bottom guarantees excellent thermal performance.
- Edge-to-Edge Acrylic Transparent Side Panel: Show off your build through the full size transparent side panel.
- Vertical and Horizontal Position: The case can be put in vertical and horizontal position.
Model
MasterBox Q300L
MCB-Q300L-KANN-S00
Colour
Black
Materials
Steel
Plastic
Dimensions ( L x W x H )
387 x 230 x 378 mm
Motherboard Support
Micro ATX
Mini-ITX
Expansion Slots
4
Drive Bays
5.25": 0
3.5" HDD: 1
2.5" SSD: 2
I/O Port
2 x USB 3.0
Audio In / Out
Pre-Installed Fans
Front: N/A
Rear: 1 x 120mm
Fan Support
Front: 2 x 120/140mm
Top: 2 x 120mm
Rear: 1 x 120mm
Bottom: 1 x 120mm
Radiator Support
Front: 1 x 120/240mm
Rear: 1 x 120mm
Clearances
CPU Cooler: 157mm
PSU: 160mm
GPU: 360mm
Cable Routing
Behind MB Tray: 28mm
Power Supply Support
Bottom mount
ATX PS2
Warranty:
Within the first 2 years after purchase, please return your product (or for power supplies installed within our enclosures, just the failed power supply) to your dealer or reseller for a replacement. If the product is still within warranty and you can no longer return it to your dealer, please contact Cooler Master Customer Support for assistance and instructions. Cooler Master will not accept returns without prior approval and an RMA number.
When returning product, please be sure to enclose a clear description of the problem and your proof of purchase with the defective product and return it as instructed by Cooler Master. Be sure to package the product securely (preferably in its original packaging) and ship it postpaid. Your dealer or Cooler Master will not be responsible for damage due to shipping. During the warranty period, your product will be repaired or replaced without charge, excluding shipping and handling.
|
COOLING
|
| Cooling |
Yes |
| Number of front fans supported (max) |
2 |
| Front fans diameters supported |
120,140 mm |
| Rear fans diameters supported |
120 mm |
| Top fans diameters supported |
120 mm |
| Bottom fans diameters supported |
120 mm |
| Number of rear fans supported (max) |
1 |
| Number of top fans supported (max) |
2 |
| Number of bottom fans supported (max) |
1 |
| Rear fans installed |
1x 120 mm |
| Liquid cooling capability |
Yes |
| Rear radiator fan sizes supported |
120 mm |
| Front radiator fan sizes supported |
120,240 mm |
DESIGN
|
| Type |
PC |
| Form factor |
Midi Tower |
| Material |
Plastic, Steel |
| LED indicators |
Yes |
| Product colour |
Black |
| Cable management |
Yes |
| Supported motherboard form factors |
micro ATX, Mini-ITX |
| Anti-dust filter |
Yes |
| Number of 3.5" bays |
1 |
| Side window |
Yes |
| Maximum CPU cooler height |
15.7 cm |
| Maximum graphics card length |
36 cm |
| Number of expansion slots |
4 |
| Maximum PSU length |
16 cm |
| Number of 2.5" bays |
2 |
LOGISTICS DATA
|
| Country of origin |
China |
| Harmonized System (HS) code |
84733080 |
OTHER FEATURES
|
| Harmonized System (HS) code |
84733080 |
PACKAGING DATA
|
| Package weight |
4.7 kg |
| Package depth |
435 mm |
| Package height |
461 mm |
| Package width |
276 mm |
PORTS & INTERFACES
|
| Audio input |
Yes |
| Audio output |
Yes |
| USB 3.2 Gen 1 (3.1 Gen 1) Type-A ports quantity |
2 |
POWER SUPPLY
|
| Power supply location |
Bottom |
| Power supply included |
No |
| Supported power supply form factors |
ATX, PS2 |
STORAGE
|
| Supported HDD sizes |
2.5,3.5" |
WEIGHT & DIMENSIONS
|
| Weight |
3.7 kg |
| Height |
378 mm |
| Width |
230 mm |
| Depth |
387 mm |
