Phanteks Glacier One 240 M25 A-RGB AIO Liquid Cooler White

Infinity mirror pump design

The Phanteks Glacier One 240 M25 A-RGB is a pre-filled all-in-one liquid CPU cooler with a 276 mm radiator and two 120 mm PWM fans. It supports Intel LGA 115x, 1200, 1700, 2011, 2011-3 and 2066 sockets as well as AMD AM4 and AM5 platforms using the original motherboard backplane. The white finish includes addressable RGB lighting on the pump cap and fans for coordinated illumination.

Sustained thermal performance

The M25 fans operate between 500 and 2000 RPM with a 10 percent tolerance, delivering 84.26 CFM of airflow at a maximum noise level of 35.7 dBA. Pressure-optimised blades and PWM control allow the pump and fans to maintain consistent cooling under continuous load while reinforced braided tubing ensures reliable fluid circulation over extended sessions.

Upgrade considerations

This 240 mm cooler replaces stock air coolers or smaller closed-loop units when lower temperatures and reduced acoustic output are required for modern mainstream sockets. Builders needing greater radiator surface area for high-core-count processors or compact cases without 276 mm mounting clearance should evaluate larger 280 mm or 360 mm alternatives instead.