Cooler Master MasterBox Q300L V3 White

Cooler Master MasterBox Q300L V3 White
  • Suitable for: Micro-ATX, Mini-ITX
  • Bays: 2 x 2,5", 2 x 3,5"
  • 1x 120mm fan bottomside
57.99
47.15 excl. VAT
 In stock, expected delivery: 4 - 5 working days
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Information

The Cooler Master MasterBox Q300L V3 White is a compact and versatile Micro-ATX and Mini-ITX case designed for builders who want performance and style in a smaller footprint. With its clean white finish, side window panel, and dimensions of 230 x 386.1 x 429.4 mm, this case offers a sleek aesthetic while providing ample room for capable hardware configurations. It supports graphics cards up to 366 mm in length, CPU coolers up to 178 mm in height, and PSUs up to 200 mm, making it well-suited for a wide range of builds.

Storage and Expansion
The MasterBox Q300L V3 White provides dedicated storage options with two 3.5-inch bays and two 2.5-inch bays, giving users flexibility for both traditional hard drives and solid-state drives. Four expansion slots ensure compatibility with multi-slot graphics cards and additional expansion cards, keeping the system future-ready without compromising on the compact form factor.

Cooling and Airflow
Liquid cooling is fully supported in this case, with front radiator compatibility for 120 mm and 240 mm configurations, top radiator support for 120 mm and 240 mm, and rear radiator support for 120 mm setups. The case also accommodates up to two 120 mm or two 140 mm fans at the front, and comes with a pre-installed 120 mm fan at the bottom and rear for solid out-of-the-box airflow. This makes the MasterBox Q300L V3 an excellent choice for thermally demanding builds in a compact chassis.

Specifications

Brand:
Cooler Master
Product number:
21985541
Product number manufacturer:
Q300LV3-WGNN-S00

Cooling

Bottom fans installed:
1x 120mm
Front fans diameters supported:
2x 120mm, 2x 140mm
Front radiator sizes supported:
120, 240 mm
Liquid cooling capability:
Top radiator sizes supported:
120, 240 mm

Display

Built-in display:

Physical characteristics

Colour of product:
White
Form factor:
Micro-ATX, Mini-ITX
Illumination:
Internal 3.5" bays:
2
Maximum CPU cooler height:
17.8 cm
Maximum graphics card length:
36.6 cm
Maximum PSU length:
20 cm
Number of 2.5" bays:
2
Number of expansion slots:
4
Side window:

Storage media

Card reader:

Weight & dimensions

Depth:
386.1 mm
Height:
429.4 mm
Width:
230 mm

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