Cooler Master introduces the MasterBox Q300 Series featuring two distinct models, MasterBox Q300L and MasterBox Q300P, with mATX motherboard form factor support. The MasterBox Q300 Series features a compact size and smart layout that enabled builders to use up to 240mm radiators in the front of the chassis. It can also support a full ATX power supply, enough to create high-end gaming systems that are manageable and portable for LAN parties.

Multiple I/O Panel Location Options

The Cooler Master MasterBox Q300 Series cases offer high-flexibility of system builds with its relocatable I/O panel with a total of six different locations to choose from. It can be placed on top or bottom and the sides of the case.

Compact Layout with ATX PSU Support

The MasterBox Q300 Series have a mATX form factor but supports a standard ATX power supply. The cases also have 28mm of space behind the motherboard to give plenty of room for cables and other accessories.

Cooler Master MasterBox Q300L

The MasterBox Q300L is characterized by patterned dust filters on the front and top panel. These patterned dust filters are magnetic and can easily be taken off for easy cleaning. The case can be oriented vertically or horizontally and an open design with its perforated front, top, and bottom panels to deliver excellent thermal performance.

Cooler Master MasterBox Q300P

The MasterBox Q300P specializes in portability having four handles for easy transport. It packs the DarkMirror front and top panels giving it a distinct look. It comes with two pre-installed 120mm RGB cooling fans in front with RGB control from its I/O panel. The RGB cooling fans can also be synchronized to the motherboard’s RGB controller.

Present and future editions of the Cooler Master MasterBox Q300 Series will be compatible within the mATX lineup, allowing the series to evolve and develop over time.