Cooler Master Introduces Q300L V2 mATX Case With Exceptional Thermal Management And Tempered Glass Side Panel

The all-new Q300L V2 by Cooler Master elevates space efficiency and thermal performance to new heights compared to the original MasterBox Q300L mATX case. With a continued focus on mATX, the Q300L V2 introduces innovations aimed at maximizing efficiency and providing excellent thermal performance while maintaining a sleek and aesthetic design.


The Q300L V2 boasts several key features:

1. Cutting-Edge Connectivity: It includes a USB 3.2 Gen 2×2 Type C port on the I/O panel, ensuring lightning-fast data transfer speeds of up to 20 GB/s.

2. Compact Yet PSU-Ready: Despite its small 370 mm x 370 mm footprint, this space-efficient mATX case can comfortably accommodate a standard ATX PSU.

3. Enhanced Dust Filtration: A newly redesigned patterned dust filter optimizes airflow and keeps your PC interior clean and cool.

4. Tidy Cable Management: With 28 mm of space behind the motherboard tray, you can easily hide cables and achieve a clean, organized build.

5. Exceptional Thermal Performance: Perforated front, top, and bottom sections ensure outstanding thermal management.

6. Tempered Glass Side Panel: Display your build through the 4 mm-thick tempered glass side panel, secured with convenient thumbscrews.


The Q300L V2 is a testament to Cooler Master’s ongoing commitment to innovation, efficiency and delivering superior thermal performance,” said Jimmy Sha, CEO of Cooler Master. “We’ve pushed the boundaries of the mATX format to ensure our users never have to compromise between space, performance and aesthetics.”