Ocypus Iota 240mm AIO Digital vs Ocypus Sigma L36 BK ARGB (2026): Key Differences
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The ocypus iota 240mm aio digital vs sigma l36 bk argb comparison highlights two distinct approaches to liquid cooling. Both units feature ARGB lighting and support modern Intel and AMD sockets. The primary difference lies in their display technology and radiator size. The Iota uses a flat digital screen on a 240mm radiator, while the Sigma offers a larger 360mm setup with a 2.4-inch LCD. You need to decide if compact efficiency or high-capacity cooling with advanced visuals matters more to your build.
Key differences
| Aspect | Ocypus Iota 240mm AIO with Digital Display | Ocypus Sigma L36 BK ARGB AIO |
|---|---|---|
| Radiator Size | 240mm | 360mm |
| Display Type | Digital Display | 2.4-inch IPS LCD Screen |
| Display Resolution | Not listed | 320 × 240 |
| Pump Bearing | FDB (Fan Dynamic Bearing) | Ceramic Bearing |
| Max Airflow | 77 CFM | 73 CFM |
| Mounting Mechanism | All-metal mounting hardware | Magnetic attachment for pump head |
Which one should you choose?
Choose Ocypus Iota 240mm AIO with Digital Display if
- You prefer a more compact 240mm radiator that fits in smaller cases.
- You want fans with a slightly higher maximum airflow rating of 77 CFM.
- You prefer a traditional mounting system using all-metal hardware.
Choose Ocypus Sigma L36 BK ARGB AIO if
- You need the extra cooling capacity of a 360mm radiator for high TDP CPUs.
- You want a large 2.4-inch LCD screen for custom images or videos.
- You prefer a magnetic pump head design for easier installation and removal.
Verdict: The Ocypus Iota is the practical choice for builds where space is limited or you prioritize maximum airflow. The Sigma suits enthusiasts who want superior thermal headroom and a customizable large LCD screen. Your decision depends on whether you value compact efficiency or high-end visual customization.
Iota 240 vs Sigma L36 Comparison
Display technology
The Ocypus Iota 240mm AIO features a flat digital display elevated by a high-transparency cover. It shows real-time CPU or GPU temperatures in Celsius or Fahrenheit, capped at 199°F. You control this via the Ocypus Digital software. The Ocypus Sigma L36 BK ARGB uses a larger 2.4-inch IPS LCD screen with a 320x240 resolution. This allows for extensive customization, including MP4 videos, JPEGs, BMPs, PNGs, and dynamic GIFs. You manage these visuals using the separate Ocypus Display software on Windows 10 or 11. The Sigma offers far more visual flexibility and content options than the Iota's basic temperature readout.
Radiator size
The Ocypus Iota 240mm AIO uses a 240mm aluminum radiator. Its dimensions are 15.2 inches in length, 6.3 inches in width, and 7.48 inches in height. This size reduces stress on your case while providing efficient cooling. The Ocypus Sigma L36 BK ARGB features a 360mm aluminum radiator. It measures 15.6 inches in length, 4.72 inches in width, and 2.05 inches in height. The Sigma is slightly longer but significantly thinner and narrower. The larger surface area of the 360mm radiator generally allows for better heat dissipation, making it suitable for higher thermal loads.
Pump performance
The Ocypus Iota 240mm AIO pump measures 70x70x65mm. It is designed to efficiently manage liquid cooling circulation and sustain high-performance output. The specific speed is not listed in the data. The Ocypus Sigma L36 BK ARGB pump features a ceramic bearing and can reach speeds up to 3100 RPM. It is paired with an oversized copper base for thermal conductivity and supports TDPs up to 300W. The Sigma's higher maximum speed and explicit TDP rating suggest a more powerful pumping action and cooling capacity for demanding builds.
Fan specifications
Both coolers use 120mm fans with a speed range of 500 to 2000±10% RPM. The Ocypus Iota 240mm AIO includes two fans with FDB bearings. It achieves a maximum airflow of 77 CFM and a max air pressure of 4.65 mmH2O, with noise levels at or below 29 dB(A). The Ocypus Sigma L36 BK ARGB also uses two fans. It achieves a maximum airflow of 73 CFM and a max air pressure of 4.3 mmH2O. Its noise level is listed as less than 27 dB(A). The Iota offers higher airflow and pressure, while the Sigma claims lower noise.
Socket compatibility
Both coolers support modern Intel and AMD platforms. The Ocypus Iota 240mm AIO is compatible with Intel LGA 115X, 1200, 1700, and 1851, as well as AMD AM4 and AM5. It uses all-metal mounting hardware for installation. The Ocypus Sigma L36 BK ARGB also supports these standard sockets. It features a magnetic mounting system where the pump head and screen connect magnetically, making installation and removal more convenient. While both cover the same socket range, the Sigma's magnetic design simplifies the physical setup process.
Choose your Ocypus AIO
Users wanting real-time temp monitoring
The Iota 240mm features a flat digital display that shows real-time CPU or GPU temperatures. You can switch between Celsius and Fahrenheit using the Ocypus Digital software. This practical feature helps you track core temperatures directly on the pump head, capped at 199°F, without needing to open software on your PC.
Owners of high-TDP CPUs needing max cooling
The Sigma L36 uses a 360mm radiator and a pump with a ceramic bearing that reaches 3100 RPM. It supports a TDP up to 300W. This larger surface area and higher pump speed provide superior heat dissipation for powerful processors, making it the better choice for demanding workloads and heavy multitasking.
Users who want customizable screen content
The Sigma L36 includes a 2.4-inch IPS LCD screen with 320x240 resolution. You can customize themes and display content using the Ocypus Display software. It supports MP4 videos, JPEG, BMP, PNG images, and dynamic GIFs. This allows you to express your unique style with a larger, more versatile visual interface.
Those preferring a lighter and simpler build
The Iota 240mm uses an aluminum radiator and features a floating visual design with a high-transparency cover. It is lighter than the Sigma, reducing stress on your motherboard. The magnetic mounting on the Sigma adds convenience, but the Iota offers a straightforward installation with all-metal hardware for Intel and AMD platforms.
The products compared
Ocypus Iota 240mm AIO with Digital Display
Best for: compact cases needing real-time temp display
- Radiator Size
- 240mm
- Socket Compatibility
- LGA 115X/1200/1700/1851, AM4/AM5
- Thermal Capacity
- 280W
- Fan Speed
- 500~2000±10% RPM
- Lighting Type
- ARGB
- Display
- Digital Display
View on Amazon: Ocypus Iota 240mm AIO with Digital Display Affiliate link
The Ocypus Iota L24 WH is a 240mm AIO liquid cooler featuring a flat digital display and ARGB lighting. It uses a 70x70x65mm pump and two 120mm fans with FDB bearings. The fans spin between 500 and 2000 RPM, delivering up to 77 CFM of airflow. It supports Intel LGA 115X/1200/1700/1851 and AMD AM4/AM5 sockets. This unit suits users who want real-time temperature monitoring on a compact 240mm radiator.
Pros
- Flat digital display shows CPU or GPU temperature in Celsius or Fahrenheit.
- Aluminum 240mm radiator reduces stress on the case due to lightweight design.
- Two 120mm fans with FDB bearings operate at low noise levels up to 29dB(A).
- ARGB lighting is independently controllable via motherboard software.
Cons
- 240mm radiator provides less cooling surface area than 360mm alternatives.
- Digital display is limited to a maximum temperature reading of 199°F.
- Requires Ocypus Digital software to switch temperature units on the display.
Good fit if
- You need a compact 240mm AIO for smaller cases.
- You want real-time temperature visibility on the pump head.
- You use Intel 1700/1851 or AMD AM5 platforms.
Skip if
- You require maximum cooling performance for high-end CPUs.
- You prefer a larger 360mm radiator for better heat dissipation.
- You need a display that shows temperatures above 199°F.
Verdict: The Ocypus Iota L24 WH 240mm AIO offers clear temperature readings and efficient airflow for mid-range builds. It fits users who prioritize visual feedback and compact dimensions over raw cooling capacity.
Ocypus Sigma L36 BK ARGB AIO
Best for: High TDP CPUs and large cases
- Radiator Size
- 360mm
- Socket Compatibility
- LGA 115X/1200/1700/1851, AM4/AM5
- Display Size
- 2.4"
- Display Resolution
- 320x240
- Thermal Capacity
- 300W
- Pump Speed
- 3100 RPM
View on Amazon: Ocypus Sigma L36 BK ARGB AIO Affiliate link
The Ocypus Sigma L36 is a 360mm AIO featuring a 2.4-inch IPS LCD display and ARGB lighting. It uses a ceramic bearing pump reaching 3100 RPM for up to 300W TDP. The fans deliver 73 CFM airflow at up to 2000 RPM. You need the official software for display customization. This unit suits users wanting a large radiator and a customizable screen.
Pros
- 2.4-inch IPS LCD screen with 320x240 resolution
- Ceramic bearing pump up to 3100 RPM
- Fans reach 73 CFM max airflow
- Magnetic pump head attachment
- Supports MP4, JPEG, BMP, PNG, and GIF
Cons
- Requires PC software via USB 2.0 for display control
- Heavier at 3.37 pounds than smaller AIOs
- Software must be whitelisted to function
Good fit if
- You need a 360mm radiator for high TDP CPUs
- You want a customizable LCD screen on the pump
- You prefer magnetic mounting for the pump head
Skip if
- You only have space for a 240mm radiator
- You want a plug-and-play display without software
- You prefer a lighter cooling unit
Verdict: Ocypus Sigma L36 ARGB 360mm AIO fits users who need high cooling capacity and a customizable screen. It is a solid choice for large cases and powerful CPUs.
Specifications side by side
| Spec | Ocypus Iota 240mm AIO with Digital Display | Ocypus Sigma L36 BK ARGB AIO |
|---|---|---|
| Radiator Size | 240mm | 360mm |
| Socket Compatibility | LGA 115X/1200/1700/1851, AM4/AM5 | LGA 115X/1200/1700/1851, AM4/AM5 |
| Display Size | not stated | 2.4" |
| Display Resolution | not stated | 320x240 |
| Thermal Capacity | 280W | 300W |
| Pump Speed | not stated | 3100 RPM |
| Fan Speed | 500~2000±10% RPM | 500~2000±10% RPM |
| Lighting Type | ARGB | ARGB |
| Lighting | ARGB | ARGB |
| Display | Digital Display | LCD Screen |
| Size | 240Mm | 360Mm |
| Dimensions | 15.2 × 6.3 × 7.48 inches | 15.6 × 4.72 × 2.05 inches |
| Weight | not stated | 3.37 pounds |
| Color | Iota L24 WH | 360MM Black |
| Model | Liquid cooler Iota L24 WH | Sigma L36 BK ARGB |
Frequently asked questions
Does the Ocypus Iota 240mm fit in small cases?
Yes, it is designed for compact builds. Its radiator measures 15.2 inches in length and 6.3 inches in width. These dimensions allow it to fit into mid-range chassis where space is limited. You get real-time temperature feedback without sacrificing too much internal room.
Which cooler handles high TDP CPUs better?
The Ocypus Sigma L36 is better for high TDP processors. It features a 360mm radiator, which provides more surface area for heat dissipation than the Iota's 240mm unit. This makes it a solid choice for large cases and powerful CPUs that generate significant heat.
What is the difference between the displays?
The Iota uses a flat digital display showing real-time temperatures up to 199°F. The Sigma features an LCD screen that allows for customizable visuals. Both provide visual feedback, but the Iota focuses on data while the Sigma offers aesthetic customization.
How heavy is the Sigma L36?
The Sigma L36 weighs 3.37 pounds. This weight is due to its larger 360mm radiator and ARGB components. You should ensure your case can support this load, especially if mounting the radiator to the top or front of the chassis.
Do both coolers support ARGB lighting?
Yes, both units feature ARGB lighting. The Iota includes it for visual appeal, while the Sigma L36 integrates it with its customizable LCD screen. This allows you to match the lighting to your other components and build theme effectively.
Which model is better for a standard mid-range build?
The Iota 240mm is ideal for standard mid-range builds. It offers efficient airflow and clear temperature readings in a compact form. If you prioritize visual feedback and fit over raw cooling capacity, this model suits your needs better than the larger Sigma.

