Description
The Cooler Master MasterBox Q300L V2 represents a significant evolution in compact chassis design, blending a 29-liter volume with the versatility of a full-sized tower. This Micro-ATX case features a high-speed USB 3.2 Gen 2x2 Type-C port on the I/O panel, supporting data transfer speeds up to 20Gbps. The exterior is defined by redesigned magnetic dust filters that optimize airflow while providing a clean, industrial aesthetic, complemented by a 4mm tempered glass side panel for a clear view of internal hardware.
This product is for:
- Compact PC builders who require a small footprint without sacrificing the ability to use standard, cost-effective ATX power supplies.
- Gamers utilizing modern high-end graphics cards, as the chassis supports triple-fan GPUs up to 360mm in length.
- Content creators needing rapid external storage connectivity via the integrated 20Gbps USB-C front-panel interface.
- Enthusiasts focused on thermal performance who want flexible cooling options including 240mm radiator support and multiple fan mounting points.
- Users looking for a durable and easy-to-maintain build, featuring scratch-resistant tempered glass and tool-less magnetic dust filters.
Detailed specifications:
- Dimensions: 387 x 230 x 383mm (including protrusions); 29L total volume.
- Motherboard Compatibility: Micro-ATX, Mini-ITX.
- Front I/O Ports: 1x USB 3.2 Gen 2x2 Type-C, 2x USB 3.2 Gen 1 Type-A, 1x 3.5mm Audio Jack.
- Expansion & Storage: 4 PCIe slots, 1x 3.5" HDD bay, 2x 2.5" SSD bays.
- Cooling Support: Front (2x 120/140mm), Top (2x 120mm), Rear (1x 120mm), Bottom (1x 120mm).
- Radiator Support: Up to 240mm (Front), 120mm (Rear).
- Component Clearances: 159mm CPU cooler height, 160mm PSU length, 360mm GPU length.
- Cable Management: 28mm of dedicated space behind the motherboard tray.
Building in the MasterBox Q300L V2 is remarkably efficient due to the 28mm of cable routing space, which prevents clutter even in a compact build. The inclusion of a pre-installed 120mm rear fan ensures immediate exhaust, while the perforated panels allow for a high-airflow configuration that prevents thermal throttling during heavy gaming sessions. The transition from the original Q300L's acrylic to tempered glass significantly improves the premium feel and long-term clarity of the side panel.
Compared to the original Q300L, the V2 adds essential modern updates including the 20Gbps USB-C port and a more durable tempered glass panel. While it competes with the Thermaltake Versa H18, the Q300L V2 offers superior GPU clearance at 360mm versus 350mm, making it more compatible with the latest NVIDIA RTX 40-series and AMD RX 7000-series cards. Its 29L volume is more space-efficient than the MasterBox MB311L while maintaining similar cooling potential for Micro-ATX builds.
Q&A:
- Does the MasterBox Q300L V2 support standard ATX power supplies? Yes, it is compatible with bottom-mounted ATX PSUs up to 160mm in length.
- What is the maximum GPU length supported? The case can accommodate graphics cards up to 360mm, fitting most high-end triple-fan models.
- Can I install a liquid cooler in this case? Yes, the front panel supports radiators up to 240mm, and the rear supports a 120mm radiator.
- What are the benefits of the USB 3.2 Gen 2x2 Type-C port? It allows for ultra-fast data transfers up to 20Gbps, ideal for external SSDs and modern peripherals.
- Are the dust filters removable? Yes, the front, top, and bottom filters are magnetic or easily removable for quick cleaning and maintenance.
