DeepCool LS520 SE WH 240mm AIO Liquid Cooler - Quiet HighFlow

In this review of the DeepCool LS520 SE WH 240mm AIO liquid cooler the bottom line is straightforward: this cooler is aimed at gamers and content creators who want a balance of strong thermal performance and striking RGB styling. The most compelling reason to buy is the 4th generation dual-chamber pump design combined with a thick copper cold plate, which improves coolant flow and reduces motor heat dumped into the loop for more efficient CPU cooling under sustained loads.

Key Features

• 4th Gen dual-chamber pump: The pump sends cool liquid through a cold plate chamber first, improving heat transfer to the CPU and lowering motor heat contribution to the loop.
• High speed motor and copper base: The three-phase brushless motor reaches up to 3100RPM while the thick skived copper plate maximizes conductive cooling for demanding CPUs.
• 280W TDP cooling capacity: The 240mm radiator with 13 rows of fins and two FE120 fans is designed to handle up to 280W TDP for overclocking and high-load scenarios.
• Anti-leak technology: A pressure-relief device in the radiator top vents inner pressure created by heat, reducing the risk of leak-related failures over long-term use.
• ARGB infinity mirror block: The pump block and included FE120 5V ARGB fans create a vivid lighting effect for builders who want a visually striking system.
• Compatibility: Broad socket support includes AMD AM4/AM5 and Intel LGA 1700/1200/1151/1150/1155 for modern and recent platforms.

Who It's For

The LS520 SE WH is best for PC builders who prioritize sustained thermal performance with a premium-looking cooler. Enthusiast gamers running mid to high TDP CPUs and content creators doing extended rendering will appreciate the dual-chamber pump and high-density radiator that help maintain lower CPU temperatures during long sessions.

Less suitable users include those who need the absolute quietest passive solution or who require a larger 360mm radiator for extreme overclocking headroom. Small-form-factor builds that cannot accept a 240mm radiator should also consider low-profile air coolers or smaller AIOs instead.

Pros & Cons

Pros

• Efficient dual-chamber pump design reduces motor heat in the loop for better sustained cooling.
• Solid thermal interface with a thick copper cold plate and high-density radiator supporting 280W TDP.
• Attractive ARGB infinity mirror pump and FE120 fans add strong visual customization to a build.

Cons

• Fans at full speed can reach higher RPMs, so expect audible noise under heavy sustained load without using the low-speed adaptor.
• 240mm size may not satisfy extreme overclockers who prefer 360mm radiators for extra headroom.

Specifications

Our Verdict

The DeepCool LS520 SE WH 240mm AIO is a strong mid-range liquid cooler that blends meaningful thermal improvements with an eye-catching ARGB presentation. It is good value for users who need reliable sustained cooling for gaming and content creation without stepping up to larger radiators, though builders sensitive to high fan speeds or with extreme overclocking goals should evaluate quieter or larger options.

Frequently Asked Questions

Does this cooler fit LGA 1700?
Yes, the LS520 SE WH lists support for LGA 1700 and other recent Intel and AMD sockets.

Are fans quiet under load?
Fans can be audible at full speed up to 2250RPM; a low-speed adaptor is included to reduce RPM and noise when preferred.

What does the anti-leak tech do?
The patented pressure-relief device vents inner radiator pressure caused by high temperature to reduce the chance of leaks after long-term use.