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DeepCool Castle 360EX A-RGB 360mm all-in-one liquid CPU cooler with A-RGB pump and fans
DeepCool

DeepCool Castle 360EX

Expert rating7.9 / 10

Cooler Type:
AIO Liquid
Radiator Size:
360 mm
Fan Count:
3
Socket Compatibility:
AMD AM4/sTRX4/sTR4
Noise Level:
32.1 dBA

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Manufacturer: DeepCool Last updated: September 12, 2026

DeepCool Castle 360EX (360mm AIO Liquid/A-RGB Pump and Fans/Ceramic Bearing/300W TDP) Review

If you're comparing the DeepCool Castle 360EX to the newer LT and Mystique lines, this is the older Castle EX series 360mm AIO, an A-RGB cooler with a ceramic bearing pump rated for 300W.

We'd recommend it to anyone shopping the value end of 360mm AIOs who still wants RGB on the pump and fans, since DeepCool has kept the Castle EX line priced below its newer LT720 while covering similar TDP territory.

Thermal Performance and TDP Rating

Rated for 300W, the Castle 360EX handles current high-TDP AM5 and LGA1700 CPUs without much trouble, with the 360mm radiator giving it a genuine edge over smaller AIOs and most air coolers at the same price.

Fan Design and Noise

Three 120mm A-RGB fans peak at 32.1dBA under full load, on the louder side when pushed hard, but the pump's ceramic bearing is rated for extended lifespan and stays quiet at idle.

Socket Compatibility and Installation

AM4, sTRX4/sTR4 and LGA1700/1200/115X/2066 are supported out of the box, and DeepCool's mounting kit is one of the easier AIO installs we've handled, similar to the LT series.

Design and Build

An RGB-lit pump cap with an anti-leak design and A-RGB fans give it a visible presence in a windowed case, without the LCD screen DeepCool reserves for its Mystique and Castle LCD variants.

Comparison to Alternatives

Against DeepCool's own LT720, covered elsewhere on this site, the Castle 360EX is the older, typically cheaper design, and the LT720's anti-leak tech and newer pump make it the better pick if the price gap is small. Against the Mystique 360, also on this site, the Castle 360EX skips the LCD display entirely, which is the right trade for anyone who wants RGB fans without paying for a screen.

Specifications

Identity

BrandDeepCool
SeriesDeepCool Castle 360EX
Model NumberDP-GS-H12-CSL360EX

Design

Cooler TypeAIO Liquid
Radiator Size360 mm
Socket CompatibilityAMD sTRX4/sTR4/AM4, Intel LGA2066/2011-v3/2011/1700/1200/1151/1150/1155

Performance

Fan Count3
Noise Level32.1 dBA
RGB LightingYes

Cooler class

Tower LayoutNot Applicable

Air fit and clearance

Cooler Weight1706 g

Liquid loop hardware

Radiator Thickness27 mm
Tube Length465 mm
Pump Max Speed2550 RPM

Fans

Fan Size120 mm
Max Speed1800 RPM
Airflow64.4 CFM
Static Pressure2.33 mmH2O
PWM ControlYes

Lighting and display

LightingARGB

Control and ecosystem

Fan ConnectionStandard 4-Pin PWM
Fans3x 120mm Hydro Bearing PWM, 500-1800 RPM
Source URLhttps://www.deepcool.com/products/Cooling/cpuliquidcoolers/Castle-360EX-Liquid-CPU-Cooler/2021/121.shtml

Expert Review

Reviewed by Burooj Alam. Rated by us, not by users.

Expert rating7.9 / 10

A solid value-tier 360mm RGB AIO, worth buying on sale but generally outclassed by DeepCool's own newer LT720 at similar pricing.

Best for

  • Budget-focused 360mm AIO shoppers who still want RGB
  • 300W-class CPUs needing a large radiator
  • Builders who want RGB fans without an LCD pump screen

Not for

  • Anyone who wants DeepCool's newest anti-leak pump tech in the LT series
  • Builders who specifically want an LCD display on the pump
  • Noise-sensitive builds, since it gets loud under full load

FAQs

What are the key specifications of the DeepCool Castle 360EX (360mm AIO Liquid/A-RGB Pump and Fans/Ceramic Bearing/300W TDP)?

The DeepCool Castle 360EX (360mm AIO Liquid/A-RGB Pump and Fans/Ceramic Bearing/300W TDP) is a CPU cooler from DeepCool. Key specs: Cooler Type AIO Liquid, Radiator Size 360, Height 27mm (Radiator Thickness), Socket Compatibility AMD AM4/AM5, Intel LGA1700/1851/1200, Fan Count 3.

Will the DeepCool Castle 360EX (360mm AIO Liquid/A-RGB Pump and Fans/Ceramic Bearing/300W TDP) work with my current setup?

The DeepCool Castle 360EX (360mm AIO Liquid/A-RGB Pump and Fans/Ceramic Bearing/300W TDP) lists Socket Compatibility is AMD AM4/AM5, Intel LGA1700/1851/1200. Check that against the hardware you already own before buying, since this is the field that most often decides whether a part fits.

Who is the DeepCool Castle 360EX (360mm AIO Liquid/A-RGB Pump and Fans/Ceramic Bearing/300W TDP) best suited to?

It suits budget-focused 360mm aio shoppers who still want rgb, 300w-class cpus needing a large radiator, builders who want rgb fans without an lcd pump screen.

What are the drawbacks of the DeepCool Castle 360EX (360mm AIO Liquid/A-RGB Pump and Fans/Ceramic Bearing/300W TDP)?

It is a poor fit for anyone who wants deepcool's newest anti-leak pump tech in the lt series, builders who specifically want an lcd display on the pump, noise-sensitive builds, since it gets loud under full load.

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