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TechnologyJul 13, 2026· 2 min read

Cooler Master HAF II 500 Integrates the Largest Fans Ever Seen in a Case

Cooler Master expands its high-performance chassis offering with the HAF II 500, a new high-end case developed to meet the thermal demands of the latest desktop systems. The case aims to ensure high airflow but with reduced noise levels, a feature increasingly important with the rising consumption and thermal density of modern GPUs.

To achieve this, the Cooler Master HAF II 500 introduces a decidedly unusual ventilation configuration in the consumer landscape. The front panel houses two Mighty40 F220 fans measuring 220 x 40 mm, capable of reaching a maximum airflow of 203.8 CFM each with a noise level of just 36 dB(A). At the rear operates a Mighty40 V180 fan measuring 180 x 40 mm, rated for a maximum airflow of 161.5 CFM and a maximum noise level of 34 dB(A).

According to Cooler Master, the design is not just about increasing the number or size of the fans but aims for a balance between air intake and exhaust to improve cooling while maintaining acoustic emissions. The company claims that the product development included independent lab tests under controlled temperature conditions, which showed improvements in operating temperatures compared to traditional solutions.

"With the HAF II 500, we have integrated the largest fans on the market and designed the case around them to achieve maximum airflow," said Gustavo Chiu, co-CEO of Cooler Master. "The result is a case that stays true to the HAF heritage while adding the modern features expected from a high-performance case. For Cooler Master, HAF has always been one of the most evident expressions of our expertise in liquid cooling."

To accommodate fans of these sizes, the HAF II 500 adopts a two-level internal layout that redistributes some of the space normally dedicated to cable management. The structure also integrates a zoned cable routing system and a Sliding Cable Cover that helps keep the inside of the case tidy while leaving air paths clear.

The front and rear ventilation openings feature low resistance to air passage, allowing the fans to operate at lower speeds without reducing cooling efficiency. The design is completed by the Airflow Divider, an element designed to direct part of the flow directly towards the graphics card, the component that, along with the processor, generates the most thermal load.

The attention to flexibility also emerges from the MasterRail system, which allows the installation of different fan and radiator sizes without obstructing airflow. The case also integrates the Dual-Mode GPU Holder, compatible with both a single graphics card and two open-air GPUs up to 3.6 slots (72 mm) thick.

From an expandability perspective, the Cooler Master HAF II 500 offers eight expansion slots and supports configurations with up to four dual-slot blower-type graphics cards, a feature that broadens its usage beyond gaming, making it suitable for workstations dedicated to AI, rendering, and simulations.

European availability is expected starting in September 2026, with a recommended price for the European market of €184.99.