Rating: 7.5. The Cooler Master MasterFrame 600 has been one of the most anticipated case launches of the year, thanks to its extensive use of aluminium and bold open-frame design. It delivers strong aesthetics and comes well-equipped with four case fans at a competitive price point, though it’s not without its flaws. Check out our full video review to get the complete picture on the MasterFrame 600.

Time stamps
00:00 Start
00:54 Overview
01:44 Fans and Radiator Support
01:56 Build Quality, Panels, Brackets, and Filters
05:11 The Modular System – Installing Fans & Panels
07:55 Relocating the Cooler Master Logo – Yes, Really!
11:13 200mm Fans and What’s in the Box
15:37 Inside the Drive Cage Design
17:17 Our Test Rig Setup
17:50 Performance Testing
19:25 Final Verdict by Leo

• Key Features The MasterFrame 600 is a high-end open-frame mid-tower chassis engineered for top-tier performance, advanced cooling solutions, and maximum customization. Built around the FreeForm 2.0 concept, it supports motherboards from ATX up to E-ATX and provides full access to modular design files, allowing users to modify and evolve their build freely.
• FreeForm 2.0 Exo-Structure
  The exposed frame architecture boosts adaptability and enables versatile configurations tailored to different build needs.
• Open & Creator-Focused Design
  With open-source elements and swappable panels, the case invites endless personalization, letting you craft a truly one-of-a-kind system.
• Broad Motherboard Compatibility
  Supports Mini-ITX, Micro-ATX, ATX, and E-ATX motherboards, making it suitable for a wide array of system builds.
• Superior Cooling Options
  Capable of holding up to eleven fans and supporting multiple radiator configurations (up to 420mm), ensuring excellent thermal management.
• Extended GPU Support
  Offers up to 485mm of graphics card clearance, ideal for housing large, high-performance GPUs.
• Tool-Free Access
  Side panels and key components can be removed without tools, simplifying installation, upgrades, and maintenance.
• GPU Support Bracket Included
  Comes with a dedicated bracket to prevent GPU sag, enhancing structural integrity and keeping your build neat under heavy loads.

Specifications:
Motherboard Support: E-ATX (up to 330mm), ATX, Micro-ATX, Mini-ITX
Power Supply Support: ATX
Expansion Slots: 8
Fans Included: 3x 140mm Mobius (front intake), 1x 120mm Mobius (rear exhaust)
Fan Mounting Options: Front: 3x 120mm / 3x 140mm / 2x 180mm / 2x 200mm; Roof: 3x 120mm / 2x 140mm / 2x 180mm / 1x 200mm; Rear: 1x 120mm; Side: 3x 120mm / 3x 140mm
Radiator Support: Front: 360mm / 420mm; Roof: 360mm / 420mm (with IO panel repositioning); Rear: 120mm; Side: 360mm / 420mm
5.25-inch Bays: Not available
Internal Drive Bays: 2x 3.5-inch / 2.5-inch combo, 3x 2.5-inch
Front I/O Ports: 2x USB 3.2 Gen 1 Type-A, 1x USB 3.2 Gen 2×2 Type-C, Audio Jack
Dimensions: 544mm H × 531mm D × 244mm W

Testing Approach
To evaluate the cooling efficiency of this case, we used a high-performance test system featuring an AMD Ryzen 9 9950X, a Palit RTX 5080 GPU, and a fast Gen 5 SSD. This setup generates significant heat, making it perfect for stress-testing the MasterFrame 600's airflow and thermal performance.

Test Configuration:
CPU: AMD Ryzen 9 9950X
Cooler: Cooler Master MasterLiquid 360 Atmos II
Motherboard: Asus ROG Crosshair X870E Hero (BIOS 1512)
RAM: 32GB G.Skill Trident Z5 Neo RGB DDR5-6000
GPU: Palit RTX 5080 Gamerock OC 16GB
PSU: Seasonic Focus GX-1000
SSD: Crucial T700 Gen 5 M.2 NVMe
Operating System: Windows 11 Pro

Thermal Performance

Cooling Summary

We conducted our tests on a warm day with ambient temperatures reaching 27°C, using high-end components to push thermal limits. The Cooler Master MasterFrame 600 handled the load reasonably well. A notable highlight was the significant drop in CPU temperatures as fan speeds increased. The included fans perform efficiently, but we found the case’s air filters to be quite restrictive, requiring higher static pressure for optimal airflow. As shown in the video, this leads to increased noise levels when fans are running at high RPM.

Final Thoughts

Our in-depth video explores the intricacies of the Cooler Master MasterFrame 600, showcasing the thoughtful engineering behind its design. However, the complexity of its modular components—brackets, screws, and adjustable parts—can make assembly time-consuming and frustrating. Following the build guide may take an hour or more, especially if you're repositioning major elements.

That said, if you opt for a straightforward build—skip the extra accessories, stick to a standard layout, and install an AIO in the top or a tall air cooler on the CPU—you’ll likely be very satisfied. The aluminium construction gives it a premium look and feel, and the overall build quality is excellent. While the black finish is tricky to capture on camera, it looks striking in person on the test bench.

You can purchase the Cooler Master MasterFrame 600 for ￡169.99 HERE

Pros:

• Premium build with abundant aluminium for a high-end look and feel
• Ample room for large motherboards and expansive cooling setups
• Great value, especially with four high-quality fans included

Cons:

• Overwhelming number of brackets, screws, and options complicate the build process
• Airflow is somewhat restricted due to dense filters
• Instruction manual is confusing and difficult to follow

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