Power Supply Wattage
No PSU
Motherboard Support
Micro ATX, Mini ITX
Connectors / Controls
2 x USB 3.0 Type-A
Audio In & Out (Supports HD Audio)
Drive Bays
1 x 3.5" Drive Bay
2 x 2.5" Drive Bays
Expansion Slots
4 Expansion Slots
Cooling System
Included:
Rear: 1 x 120mm Fan
Fan Mounts:
Top: 2 x 120 mm
Front: 2 x 120 / 140 mm
Rear: 1 x 120 mm
Radiator Options:
Front: 120 / 240 mm
Rear: 120 mm
Material
Exterior: Steel, Plastic
Left Side Panel: Transparent Acrylic
Compatibility
GPU Clearance:
360 mm
CPU Clearance:
159 mm
PSU Clearance :
ATX
Weight/Dimensions
(LxWxH) 387 x 230 x 381 mm
Additional Features
High Flexibility for System Building
Minimized Dimension with ATX PSU Support
Patterned Dust Filter
Clean Routing Space
Excellent Thermal Performance
Edge-to-Edge Acrylic Transparent Side Panel
Vertical and Horizontal position
Open Design - Perforated Front, Top, And Bottom
See Overview for more details
Choose Your Style
- High Flexibility for System Building
- Minimized Dimension with ATX PSU Support
- Patterned Dust Filter
- Clean Routing Space
- Excellent Thermal Performance
- Edge-to-Edge Acrylic Transparent Side Panel
- Vertical and Horizontal position
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.
Edge-To-Edge Side Panel
Show off your build through the full size transparent side panel.
Multiple Positioning Options
The case can be put in vertical or horizontal position.
Excellent Thermal Performance
The open design of the perforated front, top and bottom guarantees excellent thermal performance
Clean Routing Space
Behind the motherboard tray, 28mm of space is offered for cable management.
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.
Main Components Clearance
The MasterBox Q300L case supports CPU coolers up to a height of 159mm, graphics cards up to a length of 360mm, and power supplies up to a length of 160mm.