Precision VRM Cooling
Cooler Master Lab testing shows up to 10.2°C reduction across critical components, helping ensure consistent performance.*

* Cooling results may vary depending on system configuration. Testing completed at Cooler Master Labs.
Dual Cover Styles
Two decorative top covers are included and attach magnetically, so you can switch styles in seconds. Availability may vary by model.

Community Customization
Download design files to 3D print your own pump covers, faceplates, or labels - Customize your cooler, your way.

Dual Chamber Design
Our latest patented dual chamber design has been refined for enhanced cooling synergy. The new design increases water pressure and optimizes water flow directly to CPU hot spot.

Built to Endure
Engineered with PPS and fiberglass for superior strength and heat resistance, the Atmos II pump endures 70°C for 3,000 hours and 120°C for 12 hours for lasting performance**.

** Cooling results may vary depending on system configuration. Testing completed at Cooler Master Labs.
Offset Mounting Brackets for LGA 1851
Different CPUs have different hotspots. For LGA 1851***, use the included offset brackets to reduce temps by up to 4°C at the core.

*** Please check whether your motherboard is compatible with this offset bracket.
Quick and Easy Installation
Pre-installed fans and a streamlined mounting kit make setup fast and compatible with most modern processors.

Engineered for Simplicity
Wiring is hidden inside the tubes, and all fans connect via a single cable for a cleaner, faster, and smarter build.
