Computer case DarkFlash B275 PRO (black) with 6 included cooling fans

DarkFlash B275 PRO (black) with 6 included cooling fans is a mid-tower computer case designed for compact yet airflow-focused system builds. The case features a 270° panoramic tempered glass layout that provides extensive visibility of installed components while maintaining a compact footprint (354 x 275 x 425 mm). Supplied with six preinstalled 120 mm fans, the chassis supports up to nine 120 mm fans or multiple radiator configurations, and accommodates standard M-ATX and ITX motherboards, graphics cards up to 410 mm, and CPU coolers up to 160 mm. The steel construction and modular interior simplify component installation and routine maintenance.

Advantages

The B275 PRO combines a cornerless panoramic glass design with a robust 0.5 mm SPCC steel frame to balance visual presentation and structural stability. Six included 120 mm fans provide an immediate cooling baseline, and flexible fan or radiator mounting options allow users to expand airflow or install liquid cooling up to 360 mm where supported. Top and bottom dust filters reduce particulate ingress, and accessible top-panel connectors (USB-A 3.0, two USB-A 2.0, HD audio) plus power and reset buttons provide straightforward everyday usability.

Suitable for

• Compact gaming builds that require good airflow and room for long graphics cards
• Home or small office workstations with M-ATX or ITX motherboards
• System upgrades where visible component layout or RGB/tempered-glass showcases are desired
• Custom cooling configurations using multiple 120 mm fans or up to 360 mm radiators

Key specifications

• Case type: mid-tower compatible with M-ATX / ITX motherboards
• Material: 0.5 mm SPCC steel with tempered glass panels
• External dimensions: 354 mm (H) x 275 mm (W) x 425 mm (D)
• Maximum GPU length: 410 mm
• Maximum CPU cooler height: 160 mm
• Drive bays: 3.5" HDD x1 and 2.5" SSD x2 (internal)
• Expansion slots: 5
• Power supply support: standard ATX, maximum length approx. 230 mm
• Preinstalled fans: 6 × 120 mm
• Maximum fan capacity: up to 9 × 120 mm
• Fan mounts: top (120 mm ×3 / 140 mm ×2), side (120 mm ×2), rear (120 mm ×1), bottom (120 mm ×3)
• Water-cooling support: top 240/280/360 mm, side 240 mm, bottom 240/360 mm
• Front I/O: 1 × USB-A 3.0, 2 × USB-A 2.0, HD audio, power and reset buttons
• Color: black; approximate weight: 4.7 kg

How to use

Install a compatible M-ATX or ITX motherboard and secure the power supply in the designated bay, observing the recommended maximum PSU length. Mount storage devices to the internal 3.5" or 2.5" bays and install the graphics card, ensuring its length does not exceed 410 mm. Connect the preinstalled 120 mm fans to available headers on the motherboard or to a separate fan controller, and route cables through the modular interior to maintain unobstructed airflow. If adding radiators, verify clearance at the top, side, or bottom locations according to the chosen radiator size.

Usage recommendations

For consistent cooling performance, retain the original six included fans as a baseline and add additional intake or exhaust fans as needed to establish balanced airflow. Clean the top and bottom dust filters regularly to maintain airflow and reduce dust buildup. When planning custom cooling or long graphics cards, measure component dimensions before installation to ensure compatibility with the 410 mm GPU and 160 mm CPU cooler limits.