Cooler Master has updated its popular microATX case lineup with the Q300L V3. The new version focuses on better airflow, a stronger structure, and a tempered glass side panel. It also brings an updated front I/O panel.
Enhanced cooling and connectivity
The Q300L V3 supports Mini-ITX and microATX motherboards. It can fit CPU coolers up to 178 mm tall and graphics cards up to 366 mm long. The case accommodates up to six fans for cooling.
Specifications
- Motherboard Support: Mini-ITX, microATX
- Max CPU Cooler Height: 178 mm
- Max GPU Length: 366 mm
- Max Fans: 6
- Front I/O: 3 USB 3.2 Gen 2×2 Type-C, dual USB 3.2 Gen 1 Type-A, combo audio jack
Front I/O includes three USB 3.2 Gen 2×2 Type-C ports, dual USB 3.2 Gen 1 Type-A ports, and a combo audio jack. A modular companion version called the QUBE 340 will also be available. It offers optional handles, vertical or horizontal orientation, and accessory mounting.
Cooler Master has not yet announced pricing or availability for either model. The Q300L V3 targets builders who want a compact but expandable microATX system.



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