Cooler Master Cosmos Alpha Full Tower Black Silver

Cooler Master Cosmos ALPHA | Full Tower Expert Chassis

The Cooler Master Cosmos ALPHA Full Tower Black, Silver targets enthusiasts and modders who need a large-scale, flexible foundation for complex builds. This case delivers a 140 L volume with a FreeForm 2.0 design, focusing on modular internal space and thermal capacity. It supports E-ATX and EEB motherboards, long graphics cards, and extensive liquid cooling. For UK builders, it offers a tool-free drive system and a sliding motherboard tray for layout control.

Key Technical Metrics

Sliding Tray for Layout Control

The sliding motherboard tray frees up internal space. You can reconfigure the system between air and liquid cooling layouts without major disassembly. It also lets you adjust the GPU distance from the side panel. This helps optimise airflow or showcase the graphics card. The design supports seamless system changes as your build evolves.

Optimised Thermal Architecture

The case includes dual pre-installed 200×38 mm front fans for high airflow. It accommodates up to 15 fans in total across front, side, top, and bottom positions. Radiator support extends to 420 mm on the side and 360 mm on top. This provides versatile cooling flexibility for both air and liquid setups. The layout ensures heat is moved efficiently from core components.

Maximised Hardware Compatibility

The chassis supports large E-ATX and EEB motherboards without compromise. It fits graphics cards up to 400 mm and power supplies up to 240 mm. Tool-free bays handle up to seven drives, including 2.5″ and 3.5″ formats. The HDD/SSD combo cage simplifies storage expansion. This creates an uncompromised platform for wide-open FreeForm builds.

Connectivity and Front I/O

The front panel includes two USB 3.2 Gen 2×2 Type-C ports for high-speed data. It also provides four USB 3.2 Gen 1 Type-A ports for peripherals. Audio input and output jacks are present for headset use. However, this listing does not specify the exact audio codec or microphone quality. Buyers should verify the audio chip details if precise recording is required.

Build Materials and Dust Management

The exterior uses metal, plastic, SGCC, and tempered glass for a robust finish. Anti-dust filters are included to help reduce maintenance. Cable management features are built in to aid routing. The product colour is black and silver. Dimensions are 669 mm wide, 330 mm deep, and 639 mm high, weighing 27.5 kg.

What is in the box

• Cooler Master Cosmos ALPHA Full Tower Black, Silver chassis
• Pre-installed 2x 200 mm front fans
• Pre-installed 1x 120 mm rear fan
• Anti-dust filters
• Accessory kit for drive mounting and hardware
• User documentation

Check before you buy

• Confirm UK plug type for any included accessories or future PSU choices.
• Verify motherboard fit for your specific E-ATX or EEB model dimensions.
• Check clearance for large CPU coolers and GPUs in your planned layout.
• Confirm warranty region and UKCA/CE marking for your location.

Questions and answers

Our recommendation

The Cooler Master Cosmos ALPHA Full Tower Black, Silver suits UK enthusiasts building high-airflow or custom liquid-cooled systems with E-ATX boards. It offers exceptional modularity, large component support, and strong thermal potential. Covered by the applicable manufacturer warranty.