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Verdict: The DeepCool Gamer Storm Captain EX 240 RGB was a distinctive, quiet 240 mm liquid cooler for its time, but its thermal results were not consistently class-leading. In 2026, its age and unverified support for current sockets make it a niche used-market choice: consider one only if it is complete, tested, inexpensive, and confirmed to fit your system. For a new build, a current cooler or a good air cooler is the more practical option.
What the Captain 240 EX RGB is
The DeepCool Gamer Storm Captain EX 240 RGB—also called the Captain 240 EX RGB or Captain 240EX RGB—is a CPU-only closed-loop liquid cooler, not a graphics-card cooler or a custom-loop kit. DeepCool announced it in May 2017 with availability planned for June and a US MSRP of $129.99 (DeepCool’s launch announcement).
It pairs a dual-120 mm radiator with a pump/block whose transparent circulation section gives it a reactor-like appearance. That visible feature is chiefly aesthetic; AnandTech described the external circulation design as having no meaningful practical cooling function. The product’s appeal was its unusual look, braided tubing, and quiet operation—not a breakthrough in heat dissipation.
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Specifications and original package
These are historical product specifications, not an indication of current-generation performance or compatibility. Published figures vary slightly by source and measurement convention; fan airflow, pressure, and noise figures are manufacturer-style ratings, not independent system results.
#1 Best Overall
- 【Premium AIO Cooler】A premium CPU liquid cooler features a 240mm radiator and 2 quiet fans for gaming and high-performance computing systems. | TDP: 300W
- 【Powerful Pump】Equipped with the latest GEN 7 pump running at 2900RPM±10% which can dissipate the heat from CPU efficiently.
- 【Upgraded Radiator】Having 12 waterways and a high-density stack of fins, it's cooling surface of 27mm thick radiator has been extended by 37 % for better heat dissipation and a larger liquid volume.
- 【Quiet Fans】Two 120mm cooling fans deliver stable performance output for extreme cooling while very low-noise operating. | 27.2dB(A) Max.
- 【Infinity Mirror Decorated】The appeal of an infinity mirror with addressable RGB lighting creates an illusion of infinite depth and endless reflections.
| Feature | Captain EX 240 RGB |
|---|---|
| Radiator | Aluminum, approximately 275–276 × 120 × 27.6–28 mm |
| Fans | Two 120 mm TF120 PWM fans; up to approximately 1,800 RPM |
| Fan ratings | Up to 153.04 CFM airflow, 3.31 mmH₂O static pressure, and 31.3 dBA rated noise, as listed by NikkTech |
| Pump | Ceramic-bearing, three-phase design; approximately 2,100 RPM claimed |
| Cold plate | Copper |
| Tubing | Approximately 310 mm, braided |
| Lighting | Pump lighting and a separate RGB LED strip; fans themselves are not illuminated |
| Control | Included wired controller or compatible motherboard RGB control |
| Original US MSRP | $129.99 at the 2017 launch; not a current price |
The dimensions and fan ratings are reported in NikkTech’s review; the official Captain 240EX RGB specification PDF documents the original product and package.
The reported package includes the cooler, two fans, mounting hardware and backplate, RGB strip, controller, extension cable, fan hub, and documentation. A used listing may not include all of this. Check for the complete mounting kit for your exact socket rather than assuming another DeepCool cooler’s brackets will fit.
Design, installation, and case clearance
Distinctive block, stiff tubing, and extra cables
The transparent pump section is the Captain’s signature visual detail. Braided tubing protects the lines, but AnandTech found it thick and tough, while NikkTech noted limited rotational freedom at the pump joints. The tubing is about 310 mm long, shorter than the 410 mm tubes listed for modern DeepCool LS520 and LE520 coolers. Large cases and front-mounted radiators therefore deserve a careful reach check.
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- Translucent Dome: Stunning lighting visuals with translucent water chamber dome compatible with software customization
- Industrial Grade Seal: High Industrial Grade EPDM materials reinforces the seal for improved longevity and anti-leak prevention
- Expanded Dissipation Surface Area: Widened radiator water channels for increased cooling surface area
- Industrial Grade Seal: High Industrial Grade EPDM materials reinforces the seal for improved longevity and anti-leak prevention
The fill port is sealed; opening it can void the warranty. The pump and lighting also involve more wiring than a newer, integrated A-RGB setup. When inspecting a used cooler, check the pump housing, cable ends, fittings, radiator fins, and both tube connections for damage or residue.
Allow for the whole radiator assembly
A nominal 240 mm radiator fit is not enough to establish case compatibility. NikkTech measured the radiator-and-fan assembly at approximately 52.5 mm thick. Confirm that the chosen top or front mount has room for that stack, including clearance from motherboard heatsinks and memory. Also check tube reach, pump orientation, and space for the controller and its power and lighting cables. The cooler’s pump shape and tubing path may constrain placement even when the case lists 240 mm radiator support.
Socket compatibility: verify before buying
The original mounting set covered platforms common in the cooler’s era, including Intel LGA1150, LGA1151, LGA1155, LGA1156, LGA1366, LGA2011, LGA2011-3, and LGA2066, plus AMD AM2-family, AM3-family, AM4, FM1, FM2, and FM2+. AnandTech specifically notes AM4 support and no TR4 support. See NikkTech’s package and socket details and AnandTech’s product description.
Rank #3
- 3rd Generation Dual Chamber Pump for overall cooling efficiency and performance
- New SickleFlow Refreshed exterior design for improved lighting and fan blades for a quiet airflow performance
- RGB Lighting Signature cooling performance with an RGB design for all of the users wanting lighting effects that are fully customizable
- Industrial Grade Seal High Industrial Grade EPDM material to strengthen the seal for improved longevity and Anti-Leaking
- AMD AM4/AM3 plus/AM3/AM2 plus/AM2/FM2 plus/FM2/FM1
Do not assume it supports AMD AM5 or Intel LGA1700 or LGA1851. The original socket list does not establish those fits, and a bracket for a newer DeepCool model is not proof of compatibility with this Captain. Before paying, verify the precise model and bracket against DeepCool’s compatibility table or obtain model-specific confirmation from the manufacturer. If the seller has lost the original mounting kit and cannot provide confirmed hardware for your board, treat that as a significant shortcoming.
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The “RGB” name does not mean modern, individually addressable 5 V 3-pin A-RGB. The Captain uses pump lighting and a separate strip, with a wired controller; AnandTech describes seven solid-color choices—red, blue, green, magenta, cyan, orange, and white—and a small number of preset effects through that controller. Motherboard control depends on the correct compatible header and cable.
Identify the motherboard header and the cooler connection before plugging anything in. Do not connect an older 12 V 4-pin RGB device to a 5 V 3-pin A-RGB header: the standards are not interchangeable, and the wrong connection can damage lighting hardware. The controller also means extra cable routing and manual access when changing its settings. The fans are not RGB-lit.
Rank #4
- HIGH-PERFORMANCE COOLING — The NZXT Turbine pump is engineered for high flow and head pressure, delivering efficient, low-noise cooling to keep your CPU performing at its best under heavy workloads.
- CUSTOM LCD SCREEN — Display real-time system temps, animated GIFs, custom images, or web integrations like Spotify and YouTube on a bright 1.54" square LCD — fully customizable through NZXT CAM software.
- BRILLIANTLY SIMPLE — RGB Core single-frame fan delivers vibrant lighting and strong airflow in one sleek unit — with only four screws and one cable for a cleaner install and simplified cable management.
- EASY INSTALLATION — Pre-applied thermal paste and a single breakout cable from the pump cap speed up installation and reduce cable clutter.
- WIDE COMPATIBILITY — Includes tool-free mounting brackets that support the latest AMD and Intel CPU sockets, including AM5 and LGA 1851.
Cooling performance: competent for its era, not a clear leader
The independent reviews disagree, so neither result should be treated as a universal ranking. AnandTech’s low-fan-speed test measured average thermal resistance of 0.1126 °C/W and characterized the result as mediocre relative to many similarly sized AIOs in its database, with stock cooling behind a number of competitors. NikkTech judged cooling efficiency good in its own comparison, but estimated the improvement over the regular Captain 240 at roughly 4–5%, rather than DeepCool’s claimed 10%. See AnandTech’s test results, its conclusion, and NikkTech’s review.
Different CPUs, heat loads, ambient temperatures, mounting pressure, thermal paste, fan and pump settings, case airflow, and test methods can produce different results. Absolute temperatures, temperature deltas, and thermal resistance are not interchangeable measures. The defensible takeaway is that the Captain was not a thermal leader, though it could cool mainstream CPUs of its era; the evidence does not establish it as suitable for every high-power modern CPU.
Noise: its strongest measured quality
At AnandTech’s low-fan-speed test setting, the cooler measured 32.4 dBA, which the publication described as effectively inaudible in a typical case at that operating point. Its noise-versus-performance analysis found acoustic behavior competitive with the Fractal Design Celsius S24, while some 240 mm rivals delivered better thermal results at the cost of more noise. These are results from AnandTech’s controlled test setup, not a guarantee for another PC. See the low-speed measurements and the noise-versus-performance analysis.
Best Value
- 【Better Cooling】 The cooler adopts the fourth generation pump head + 240 cold row size black aluminium fin heat sink plate + protective preparation mesh water pipe + standard configuration 120mm ARGB fan, to create a low vibration, high heat dissipation, low evaporation, high life span of the one-piece water-cooled cooler area unit.
- 【Unique Pump Head】 The octagonal shaped cold pump head adopts the exclusive frame of the 4th generation water pump, the swirling rectangle design and the ARGB halo under the logo luminous marking creates a colourful visual experience, and the life of the cold pump head is up to 40,000 hours with a rotation speed of up to2800 RPM ± 10%, which ensures that the CPU is provided with excellent heat dissipation for a long period of time
- 【High Airflow Output】 The airflow provided by the cooling vents can reach up to 66.17CFM, providing everything needed to run the latest Intel or AMD performance while suppressing the heat of high-end processors and increasing the overall cooling efficiency.
- [CPU Fan Parameters]Equipped with dual-fan TL-C12B-S V2, Speed:1500RPM±10%, size: 120x120x25mm, fan noise≤25.6dBA, power supply interface: 4PIN PWM, light interface: 5V/3PIN ARGB, airflow: 66.17CFM(MAX), with PWM and ARGB function, can automatically adjust the speed according to the CPU temperature, provide strong airflow and lower noise, ARGB light colour can be manually adjusted
- 【Convenient Installation】 AIO cooler compatibility, support AMD & Intel slots, support AMD: AM4/AM5, Intel: lga1150/1151/1155/1156/1200/1851/1700, comes with accessories that can be installed on the corresponding platforms, the installation is simple, can be installed according to the instructions and tutorials.
The 31.3 dBA fan rating is not directly comparable to a measured complete-cooler or system result. Pump sound, fan-bearing condition, case resonance, fan curves, and age all affect what you hear; a used unit may rattle, grind, or run louder because of wear or trapped air.
Used in 2026: assess the risk, not just the benchmark
The Captain launched in 2017, making an existing unit roughly nine years old in 2026. That age raises practical concerns about pump bearings, seals, tubing, coolant-related components, bracket availability, and warranty coverage. No verified service-life figure establishes how long a particular unit will last, and anecdotal leak reports cannot establish a model-wide failure rate. Assume the original warranty is unavailable unless the seller provides documentation that can be verified.
Before you buy
- Ask for clear photos of the pump, radiator, tubes, fittings, connectors, controller, and the full mounting kit.
- Inspect for coolant staining or crust around fittings, corrosion, bent or badly damaged radiator fins, tube kinks or cracks, pump-housing damage, and frayed or missing RGB and power cables.
- Ask for a powered demonstration if possible. Check that pump RPM appears in BIOS or monitoring software, observe CPU temperature under a repeatable load, and listen for grinding, rattling, or intermittent pump noise.
- Do not buy a unit that has been opened at its sealed fill port without a clear reason and reliable service evidence; opening it can void the warranty.
- Prefer a seller offering a return window or meaningful purchase protection, especially if the cooler cannot be tested before payment.
A benchmark can show how a working cooler performed under one test; it cannot establish the remaining life of an individual old AIO.
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There is no confirmed 2026 Captain price in the cited material. Its $129.99 figure is the US launch MSRP from 2017, and AnandTech’s roughly $120 including-shipping reference is review-era pricing, not a current market quote. Do not use either as a present-day buying benchmark.
DeepCool’s current cooling catalog features newer product families rather than the Captain EX RGB. For a current DeepCool alternative, the official LS520 page lists LGA1851, LGA1700, LGA1200/115x, AM5, and AM4 support, 410 mm tubing, two A-RGB fans, and a 280 W thermal-design capability. The LE520 page lists AM5, AM4, LGA1700, LGA1200, and selected LGA115x support, 410 mm tubing, A-RGB, and a 220 W thermal capability. These are manufacturer specifications, not directly comparable independent test results or a promise of performance with every CPU.
Either newer AIO offers a more relevant starting point for current socket support and integrated lighting, but still involves a pump and liquid-cooling hardware. For a modest CPU or a buyer who values simplicity, a quality tower air cooler is often the more straightforward choice: it avoids a pump, uses fewer lighting and control cables, and does not depend on finding an aging cooler’s mounting kit. Compare the total cost of a used Captain plus any missing brackets, replacement fans or controller, shipping, and return protection against the price and warranty of a new cooler.
Quick Recap
Product prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on Amazon at the time of purchase will apply.
