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Cooler Master MasterBox Q300L Micro-ATX Case - White Window

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The MasterBox Q300L is your straightforward option in the lineup of the MasterBox Q-series from Cooler Master.

This product is no longer available.

SKU CAS-CLM-00641
EAN 4719512114933
MPN MCB-Q300L-WANN-S00
MANUFACTURER Cooler Master

The MasterBox Q300L 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 MasterBox Q300L 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.

Specifications
- Product Name: MasterBox Q300L
- Product Number: MCB-Q300L-KANN-S00
- Available Colour: Black
- Materials: Steel, Plastic
- Dimensions (LxWxH): 387 x 230 x 378mm
- 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: USB 3.0 x 2, Audio In / Out
- Pre-installed Fan(s): Front - N/A, Rear - 120mm x 1
- Fan Support: Front - 120 / 140mm x 2, Top - 120mm x 2, Rear - 120mm x 1, Bottom - 120mm x 1
- Radiator Support: Front: 120mm x 1 / 240mm x 1, Rear - 120mm x 1
- Clearances: CPU Cooler - 157mm, PSU - 160mm, GPU - 360mm
- Cable Routing: Behind MB Tray - 28mm
- Power Supply Support: Bottom mount, ATX PS2
- EAN Code: 4719512065488
- UPC Code: 884102038006

Case
Case Type Mini Case
Product series
Product Series/Family MasterBox
Internal Dimensions
Max. CPU Cooler Height 157 mm
Max. GPU Lenght 360 mm
Max. PSU Length / Depth 160 mm
Dimensions
Length 387 mm
Width 230 mm
Height 378 mm
Materials
Materials Plastic, Steel
Power Supply
PSU included No
PSU format ATX
Power Supply Position rear bottom
Colour
Primary Colour White
Secondary Colour Black
Fan main colour (cage) Black
Fan main colour (rotor) Black
Lighting
Lighting No
Drive Bays
2.5 inch internal drive bay 2
3.5 inch internal drive bay 1
Expansion Slots
Expansion slots / PCI slots 4
Motherboard Support
Compatible motherboard formats Micro-ATX, Mini-ITX
Max. Motherboard Format Micro-ATX
Radiator Support
Max. Radiator Compatibility 1x Dual (240 mm)
Additional Contents
Included fans 1x 120 mm
Case Features
I/O position Side
Side panel closed
Cable Management Yes
Filters included Yes
Mainboard slide / tray Yes
External Ports
USB 3.0 (external) Type A 2
Audio outputs & inputs 1x output + 1x input (3.5 mm jack, 3-pin, TRS)
Fan Support
120 mm fans 6
140 mm fans 2
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