This article covers Cooler Master 360 Atmos Stealth 高性能クローズループ AIO 液体クーラー R9.

Overview

The Cooler Master 360 Atmos Stealth is the flagship model in the MasterLiquid series, featuring a patented dual-chamber pump that increases water pressure to directly target CPU hotspots. This design excels at cooling high-TDP processors like the AMD Ryzen 9 and Intel Core i9, maintaining stable temperatures under sustained loads. The pump top cover is 3D-printable, allowing users to create custom designs for a personalized look. The included Mobius 120 PWM fans use a ring-blade construction to minimize vibration and deliver quiet, efficient airflow. Fans come pre-installed on the radiator, simplifying installation.

Connectivity & Compatibility

The cooler supports AMD AM5 and Intel LGA1851/1700 sockets, covering the latest mainstream platforms. The redesigned mounting brackets are tool-free and easy to install. Fans connect via standard 4-pin PWM headers, with speed adjustable from 0 to 2400 RPM. The pump also uses a 4-pin PWM connector for speed control. The loop is pre-filled and sealed, requiring no maintenance.

Product Info

Released in late 2025, the 360 Atmos Stealth is priced around ¥22,000 in Japan. It comes with a 5-year warranty. The package includes three Mobius 120 PWM fans, mounting hardware, thermal paste, and a quick-start guide. This is a high-tier AIO cooler, competing with models like the Corsair H150i Elite and NZXT Kraken X73. Its dual-chamber pump and customizable pump top set it apart from the competition.

Best Use Cases

Heavy users running Ryzen 9 / Core i9: The dual-chamber pump effectively cools high heat output CPUs, making it ideal for rendering, encoding, and other all-core workloads. Silence-focused gamers: Mobius fans with ring-blade design reduce vibration and noise. PWM control allows fan stop at idle for near-silent operation. Customization enthusiasts: The 3D-printable pump top cover lets you add logos, patterns, or any design to match your build theme. Note: Requires a case that supports a 360mm radiator. Check your case's radiator clearance before purchasing.

Product Disclosure (Amazon)

  • Manufacturer: Cooler Master
  • Seller: Amazon US
  • Fulfilled by: Amazon US
  • ASIN: B0DVNKR4L9
  • Note: This article covers a manufacturer-made product based on Amazon listing details.