The MasterBox Q300L is your straightforward option in the lineup of the brand new MasterBoxQ-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.
| Dimensions | W | D | H |
| 230mm | 387mm | 378mm | |
| Weight | 3.7kg | ||
| Front Fan | Supports 2 x 120/140mm | ||
| Rear Fan | Includes 120mm fan | ||
| Top / Bottom Fan | Supports 2 x 120mm Top, Supports 1 x 120mm Bottom | ||
| Radiator Support | Front 120mm, 240mm Rear 120mm |
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| 5"1/4 Bays | 0 x 5"1/4 | ||
| 3"1/2 Bays | 1 x 3"1/2, | ||
| 2"1/2 Bays | 2 x 2"1/2 | ||
| Motherboard | Micro-ATX, ITX | ||
| Power Supply | ATX Supported, up to 160mm Length | ||
| Material | Body: Steel Side / Front: Plastic |
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| CPU Cooler | Max Height 157mm | ||
| Window | Full Size Acrylic | ||
| Graphics Support | Max 360mm Length | ||
| Vertical Graphics | No | ||
| Expansion Slots | 4 Horizontal | ||
| Hubs | - | ||
| Connectors | USB 3.0 x 2 Mic / Audio |
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PATTERNED MAGNETIC DUSTFILTERS
Special pattern on the dust filter creates a unique outlook for the chassis.
MODULAR I/O PANEL
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.
MULTIPLE POSITIONING OPTIONS
The case can be put in vertical or horizontal position.
EDGE-TO-EDGE SIDE PANEL
Show off your build through the full size transparent side panel.
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.
FAN AND RADIATOR SUPPORT
The front supports up to two 140mm fans and up to a 240mm radiator. The rear supports a 120mm fan or radiator and the top two 120mm fans. All to ensure you don't have to compromise on performance.
