Cooler Master QUBE 340 M-ATX White Mini Tower Case

The Cooler Master QUBE 340 is a Micro-ATX mini tower chassis designed around Cooler Master's Thermal Excellence philosophy, making it a capable foundation for compact, high-performance desktop builds. Its white SGCC steel, tempered glass, and mesh construction strikes a balance between aesthetics and thermal function, while enlarged front panel perforations promote strong airflow intake even in a space-constrained form factor. The QUBE 340 supports both M-ATX and M-ITX motherboards, giving builders flexibility within the same footprint. A generous 178 mm CPU cooler height clearance accommodates most mainstream air coolers, and the case can house graphics cards up to 366 mm long (when no front fan is installed), covering the vast majority of current mid-range and high-end GPUs. Power supplies up to 200 mm fit comfortably without a bottom fan; installing a bottom fan reduces the usable PSU length to 140 mm. Cooling potential is a standout highlight. The chassis supports up to six fans across the top (2×120 mm or 2×140 mm), front (2×120 mm or 2×140 mm), rear (1×120 mm or 1×140 mm), and bottom (1×120 mm or 1×140 mm) positions. Radiator compatibility extends to 240 mm and 120 mm at the top and front, and 120 mm at the rear, enabling liquid cooling setups in a compact enclosure. One pre-installed fan ships with the case. Dust filters at the top, front, and bottom protect internal components from particulate buildup. Storage options include one 3.5-inch HDD bay, one 3.5/2.5-inch combo bay, and two dedicated 2.5-inch SSD mounts, expandable to a maximum of four 2.5-inch drives. Four expansion slots support multi-slot GPU configurations. Front I/O features USB 3.2 Gen 1 Type-A, USB 3.2 Gen 2×2 Type-C, and a combo audio/microphone jack for convenient connectivity. The modular QUBE family DNA carries through in flexible front I/O placement and optional handle accessories, allowing users to orient or carry the chassis to suit their workspace. A 30 mm cable routing channel behind the motherboard tray simplifies cable management and keeps the build interior tidy. Verified Specifications: - Form Factor: Micro-ATX / Mini-ITX - Color: White - Material: SGCC steel, tempered glass, mesh - Max CPU Cooler Height: 178 mm - Max GPU Length: 366 mm (without front fan) - Max PSU Length: 200 mm (without bottom fan) / 140 mm (with bottom fan) - Fan Support: Up to 6 fans (Top 2×120/140 mm, Front 2×120/140 mm, Rear 1×120/140 mm, Bottom 1×120/140 mm) - Radiator Support: 240/120 mm (Top & Front), 120 mm (Rear) - Pre-installed Fans: 1×140 mm (non-ARGB) - Drive Bays: 1×3.5-inch, 1×3.5/2.5-inch combo, 2×2.5-inch (max 4×2.5-inch) - Expansion Slots: 4 - Front I/O: USB 3.2 Gen1 Type-A, USB 3.2 Gen 2×2 Type-C, Audio Combo Jack - Dust Filters: Top, Front, Bottom - Warranty: 2 Years - SKU: Q340-WGNN-S00