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Cooler Master MasterBox Q300P RGB Mini Tower 2 x USB 3.0 Side Window Panel Black Case


Availability: In stock

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Quick Overview

The MasterBoxQ300P is your portable 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.

Four removable handles and the DarkMirror front and top panels makes the chassis easy to transport and stands out from the rest. Although the size wouldn't tell, the MasterBoxQ300P supports a standard ATX PSU which we don't see often in the market with this size.

Due to the cube design of the frame you can turn and rotate this chassis in multiple positions. The I/O panel can be adjusted to six different locations, three options at each side of the case. Two RGB fans are pre-installed in the front of the case. You can decide which setup and colour theme fits you best.

The combination of the portable design and the unique exchangeable outlook makes the MasterBoxQ300P the perfect choice for gamers and creative builders.

- 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 MasterBoxQ300P can accommodate a normal ATX PSU.
- Easy to Handle: Four removable handles make it easy to transport or carry your full system build to a LAN Party.
- Clean Routing Space: Behind the motherboard tray, it offers 28mm wide and spacy room for hidden cable management.
- Edge-to-Edge Acrylic Transparent Side Panel: Show off your build through the full size transparent side panel.
- RGB LED Fans: Two pre-installed 120mm RGB LED fans behind the front panel and RGB lighting at the top front can create an amazing lighting effect.
- RGB Lighting Control: One RGB controller is included in the accessory pack. If your MB does not support the RGB control function, you can connect the RESET button cable and control the RGB lighting directly from the I/O panel.
- Vertical and Horizontal Position: The case can be put in vertical and horizontal position.
- 1-to-3 Splitter Cable for RGB LED Fans: The RGB Connector Splitter and 4 pin male to male adapters are included. Certified compatible with: ASUS, Gigabyte, MSI and ASRock motherboards.

MasterBox Q300P



Dimensions ( L x W x H )
450 x 230 x 450 mm

Motherboard Support
Micro ATX

Expansion Slots

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: 120mm RGB LED x 2
Rear: 120mm non-LED x 1

Fan Support
Front: 2 x 120/140mm
Top: 2 x 120mm
Rear: 1 x 120mm
Bottom: 1 x 120mm

Radiator Support
Front: 1 x 120mm/240mm
Rear: 1 x 120mm

CPU Cooler: 157mm
PSU: 160mm
GPU: 360mm

Cable Routing
Behind MB Tray: 28mm

Power Supply Support
Bottom mount

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Form factor Midi-Tower
Type PC
Material Plastic, Steel
Number of 3.5" bays 1
Supported motherboard form factors Micro-ATX,Mini-ITX
Colour of product Black
Side window Y
Number of 2.5" bays 2
Illumination Y
Illumination colour Red/Green/Blue
Illumination location Case fans
Anti-dust filter Y
Number of expansion slots 4
Maximum CPU cooler height 15.7 cm
Maximum graphics card length 36 cm
Maximum PSU length 16 cm
Power supply
Power supply included N
Power supply location Bottom
Supported power supply form factors ATX,PS2
Ports & interfaces
USB 3.0 (3.1 Gen 1) Type-A ports quantity 2
Audio input Y
Audio output Y
Front fans installed 2x 120 mm
Maximum front fans 2
Front fans diameters supported 120,140 mm
Rear fans installed 1x 120 mm
Maximum rear fans 1
Rear fans diameters supported 120 mm
Maximum top fans 2
Top fans diameters supported 120 mm
Maximum bottom fans 1
Bottom fans diameters supported 120 mm
Cooling Y
Liquid cooling capability Y
Front radiator fan sizes supported 120,240 mm
Rear radiator fan sizes supported 120 mm
Supported hard disk drive sizes 2.5,3.5"
LED indicators Y
Cable management Y
Weight & dimensions
Width 230 mm
Depth 450 mm
Height 450 mm
Weight 5.2 kg
Packaging data
Package width 277 mm
Package depth 510 mm
Package height 527 mm
Package weight 6.4 kg

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