COOLER MASTER Masterbox Q300P MATX Mini Tower Cabinet (Black)

The Cooler Master MasterBox Q300P is a compact mATX mini tower cabinet designed for builders who want RGB aesthetics and practical flexibility in a smaller footprint. Finished in black with a steel and plastic construction, the Q300P keeps your build looking clean while offering genuine customisation at every step. Two 120 mm RGB LED fans are pre-installed at the front intake, pushing airflow through the chassis and illuminating the interior. A single 120 mm non-LED fan sits at the rear for exhaust. The windowed side panel lets you showcase your components, and Cooler Master’s modular panel system means you can reposition or remove panels to suit your cable routing and cooling requirements. On the front I/O panel you get two USB 3.0 ports and a combined HD audio jack — the essentials positioned within easy reach. Four expansion slots give you room for a discrete GPU and additional PCIe cards, while one internal 3.5-inch drive bay handles mechanical storage. The motherboard tray accepts both Micro ATX and Mini ITX form factors, making this case a versatile choice whether you are starting a new mATX build or repurposing a smaller ITX board. Edge-to-panel design and clean routing channels help tidy up cables behind the motherboard tray, keeping the glass-side view uncluttered. At 450 × 230 × 450 mm (L × W × H), the Q300P strikes a balance between a compact desk presence and enough interior volume to house modern coolers and full-length graphics cards within the limits of its mATX layout. Verified Specifications: – Model: MCB-Q300P-KANN-S02 – Brand: Cooler Master – Form Factor: mATX Mini Tower – Motherboard Support: Micro ATX, Mini ITX – Case Material: Steel / Plastic – Colour: Black – Side Panel: Windowed – Pre-installed Fans: Front 120 mm RGB LED × 2; Rear 120 mm non-LED × 1 – Front Ports: USB 3.0 × 2, HD Audio × 1 – Internal 3.5″ Drive Bays: 1 – Expansion Slots: 4 – Dimensions: 450 × 230 × 450 mm (L × W × H)