DeepCool LS520S Zero Dark

Name: DeepCool LS520S Zero Dark
Brand: DeepCool
SKU: 42058

Manufacturer: DeepCool

The DeepCool LS520S Zero Dark is a 240 mm all-in-one liquid cooler designed for users who want effective thermal management without RGB lighting. It ships with thermal paste included and supports a wide range of Intel and AMD sockets, covering LGA 1150 through LGA 1851 on the Intel side and both AM4 and AM5 on AMD platforms. The cooler weighs 1346 g in total and carries a one-year warranty from DeepCool.

Cooling performance is handled by two fans running on fluid dynamic bearings, each capable of reaching 2250 RPM with a combined maximum airflow of 85.85 CFM. Noise output ranges from a low of 19 dB up to 32.9 dB at full speed. The pump operates at up to 3100 RPM, while the radiator measures 282 mm in length and 27 mm in thickness. The water block itself has a compact footprint of 73 × 85 mm with a height of 55 mm, and the unit has no integrated display or RGB elements.

Pros

Supports a wide range of CPU sockets across both Intel and AMD platforms, including LGA 1851 and AM5
Fans use fluid dynamic bearings, which tend to offer quieter and longer-lasting operation
Thermal paste is included, allowing installation without needing additional accessories
Minimum noise level of 19 dB makes it suitable for quieter operating conditions
No RGB lighting or display keeps the build clean and avoids unnecessary complexity

Cons

Maximum noise level of 32.9 dB at full fan speed may be noticeable in quiet environments
Warranty period is limited to one year
The 240 mm radiator size may not fit all case configurations, particularly smaller form factors
Total weight of 1346 g is on the heavier side for an AIO of this radiator class

Who is this for?

This cooler is a solid fit for users building systems around modern Intel or AMD platforms, including LGA 1851 and AM5, who want liquid cooling without RGB elements or a display cluttering the build. Its 19 dB minimum noise output also makes it well-suited for those who prioritize a quieter work or home environment during light to moderate workloads. The included thermal paste and broad socket compatibility further make it a practical choice for straightforward builds where ease of installation matters.

Who is this NOT for?

Users working with small form factor cases that lack a 240 mm radiator mounting position will find this cooler incompatible with their setup. Those who want visual customization through RGB lighting or a pump-head display will need to look elsewhere, as this unit offers neither. Additionally, anyone requiring more than a one-year warranty for long-term peace of mind may find the coverage period insufficient for a cooling component under continuous use.

Cooling:

Cooling type	AIO liquid
Max fan RPM	2250 rpm
Max pump RPM	3100 rpm
Max airflow	85.85 CFM
Number of fans	2

The LS520S Zero Dark uses an AIO liquid cooling setup with two fans that reach a maximum speed of 2250 RPM, delivering up to 85.85 CFM of airflow combined. The pump runs at up to 3100 RPM, helping to maintain consistent coolant circulation through the 240 mm radiator loop.

Dimensions:

Heatsink/water block height	55 mm
Heatsink/water block width	73 mm
Heatsink/water block depth	85 mm
Radiator size	240 mm
Radiator height	27 mm
Radiator length	282 mm
Radiator width	120 mm

The water block measures 73 mm wide, 85 mm deep, and 55 mm tall, giving it a relatively compact footprint on the motherboard. The 240 mm radiator spans 282 mm in length and 120 mm in width, with a thickness of 27 mm, making it a standard slim-profile unit suited for cases with a 240 mm radiator mounting point.

General info:

CPU socket	LGA 1851, LGA 1700, LGA 1200, LGA 1151, LGA 1150, LGA 1155, AM4, AM5
Audible noise (min)	19 dB
Audible noise (max)	32.9 dB
weight	1346 g
warranty period	1 years

The cooler is compatible with a broad range of sockets, covering Intel platforms from LGA 1150 through LGA 1851 as well as AMD AM4 and AM5. Audible noise ranges from 19 dB at its quietest to 32.9 dB under full load, and the unit weighs 1346 g in total. It comes with a one-year warranty.

Features:

Fan bearings	Fluid dynamic bearings
has RGB lighting	✕
Thermal paste	Included
Has a display	✕

The fans run on fluid dynamic bearings, and thermal paste is included in the box, so no separate purchase is needed before installation. The cooler does not feature RGB lighting or an integrated display, keeping the aesthetic straightforward and understated.

Final Verdict

The DeepCool LS520S Zero Dark is a no-frills 240 mm AIO liquid cooler that delivers on the fundamentals: wide platform compatibility spanning current Intel and AMD sockets, a quiet floor of 19 dB, and a clean aesthetic free of RGB or display elements. Its fluid dynamic bearing fans and included thermal paste make it a practical, installation-ready option for users who want reliable liquid cooling without unnecessary extras. The one-year warranty and 240 mm form factor requirement are worth keeping in mind, but for builders seeking a straightforward, quiet-oriented AIO for a modern platform, the LS520S Zero Dark presents a well-defined and focused solution.

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