ASUS ROG Strix LC II vs ASUS Prime 240mm ARGB AIO Liquid Cooler (2026): Key Differences
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You are comparing the asus rog strix lc ii vs prime lc 240 argb to find the right 240mm AIO for your build. Both coolers use sleeved tubing and offer addressable RGB lighting to match your chassis. The main difference lies in their target aesthetic and socket support. The Strix LC II focuses on premium ROG styling, while the Prime LC 240 offers infinity mirror lighting and broader support for newer platforms. You need to check which features align with your motherboard and case.
Key differences
| Aspect | ASUS ROG Strix LC II 240mm Liquid Cooler | ASUS Prime 240mm ARGB AIO Liquid Cooler |
|---|---|---|
| Socket Compatibility | AM4, TR4, LGA 1700, 1200, 115x, 2066 | AM5, AM4, LGA 1851, 1700, 1200, 115x |
| Lighting Style | Individually addressable RGB | Customizable infinity mirror lenses |
| Pump Technology | Seventh Gen Asetek pump | Specially designed CPU contact area |
| Weight | 2.2 pounds | 3.3 pounds |
Which one should you choose?
Choose ASUS ROG Strix LC II 240mm Liquid Cooler if
- You want a proven Asetek pump with minimal noise at low speeds
- You are building with an older Intel socket like LGA 2066 or TR4
- You prefer a lighter cooler that is easier to handle during installation
Choose ASUS Prime 240mm ARGB AIO Liquid Cooler if
- You need support for the latest AM5 or LGA 1851 sockets
- You want infinity mirror lighting effects to complement a Prime motherboard
- You prioritize modern socket compatibility over legacy support
Verdict: Choose the Strix LC II if you value a lightweight design and legacy socket support. Pick the Prime LC 240 if you need compatibility with the newest AM5 or LGA 1851 platforms. Both provide reliable 240mm cooling with distinct aesthetic options.
ROG Strix LC II vs Prime LC 240
Socket Compatibility
The ASUS ROG Strix LC II supports older Intel platforms including LGA 115x, 1366, 2011, 2011-3, and 2066, alongside AM4 and LGA 1700. This broad range helps users with legacy systems. The ASUS Prime LC 240 focuses on modern sockets, supporting AM5, LGA 1851, LGA 1700, LGA 1200, and LGA 115x. It lacks support for the older LGA 2066 and 2011-3 sockets. If you are building on a recent Intel 13th or 14th Gen or AMD Ryzen 7000/9000 series, the Prime works. For older rigs, the Strix LC II is the safer choice.
Radiator Dimensions
Physical size matters for case compatibility. The ROG Strix LC II radiator measures 14.1 inches in length, 9.18 inches in width, and 5.25 inches in height. The ASUS Prime LC 240 radiator is significantly smaller, measuring 10.9 inches in length, 4.7 inches in width, and 1.1 inches in height. The Prime’s slim 1.1-inch profile fits easily into tighter cases or behind motherboards. The Strix’s thicker 5.25-inch design offers potentially higher thermal mass but requires more clearance. Check your case specifications carefully before choosing based on these dimensions.
Pump Technology
The ASUS ROG Strix LC II uses a Seventh Generation Asetek pump. This specific pump model is known for delivering exceptional cooling performance while maintaining minimal noise, with an operating range starting at 840 rpm. The ASUS Prime LC 240 features a specially designed CPU contact area for powerful heat dissipation, but the data does not specify the pump manufacturer or model. Without knowing the pump type, you cannot compare efficiency or noise levels directly. The Strix LC II provides more transparency regarding its core cooling component technology.
Lighting Aesthetics
Both coolers offer addressable RGB lighting, but the implementation differs. The ROG Strix LC II features individually addressable RGB on the pump head, which is covered by an NCVM coating for a modern, sleek look. The fans are ROG-designed for optimized airflow. The ASUS Prime LC 240 uses customizable infinity mirror lenses on the pump head to create a futuristic aesthetic. It also comes with high-performance pre-installed ARGB fans. If you prefer a metallic, coated look, choose the Strix. If you want a glowing infinity mirror effect, the Prime is the better option.
Build Weight
Weight can affect how your motherboard’s CPU socket handles stress over time. The ASUS ROG Strix LC II weighs 2.2 pounds. The ASUS Prime LC 240 is heavier at 3.3 pounds. The Strix LC II is lighter, which may be preferable for motherboards with weaker CPU socket reinforcement. The Prime’s additional weight might require more robust mounting or careful handling during installation. Both units feature reinforced, sleeved tubing for increased durability, so cable management and longevity are comparable in this regard.
Which AIO cooler fits your build
Owner of older Intel or AMD platforms
The ROG Strix LC II supports legacy sockets like LGA 115x, 1366, 2011, 2011-3, and 2066. This broad compatibility ensures it works with your existing motherboard without requiring an upgrade. You get a reliable Asetek pump and sleeved tubing that fits older system designs effectively.
User with latest AM5 or LGA 1851
The ASUS Prime LC 240 supports modern sockets including AM5 and LGA 1851. It features infinity mirror lighting and a specialized CPU contact area for heat dissipation. This model ensures compatibility with your newest processor while providing customizable ARGB aesthetics that match current Prime motherboard designs.
Builder prioritizing compact pump head size
The Prime LC 240 has a significantly smaller pump head, measuring 4.7 inches in width and 1.1 inches in height. This compact footprint reduces clearance issues around RAM slots or other components near the CPU socket. You gain more space for other parts in tight chassis layouts.
The products compared
ASUS ROG Strix LC II 240mm Liquid Cooler
Best for: LGA1700 and AM4 builds needing 240mm cooling
- Radiator Size
- 240mm
- Socket Compatibility
- AM4, TR4, LGA 1700, 1200, 115x, 2066
- Lighting Type
- Addressable RGB
- Dimensions
- 14.1 × 9.18 × 5.25 inches
- Weight
- 2.2 pounds
View on Amazon: ASUS ROG Strix LC II 240mm Liquid Cooler Affiliate link
The ASUS ROG Strix LC II 240mm is an all-in-one liquid cooler built for Intel LGA1700 and AMD AM4 sockets. It uses a seventh-generation Asetek pump starting at 840 rpm for quiet operation. The unit features individually addressable RGB lighting and a non-conductive vacuum metallization coating on the pump head. Reinforced sleeved tubing adds durability. This 240mm radiator fits most mid-tower cases.
Pros
- Seventh-gen Asetek pump for efficient cooling
- Individually addressable RGB lighting
- NCVM-coated pump head for durability
- Reinforced sleeved tubing
Cons
- Only supports 240mm radiator size
- No mention of LCD display
- Limited to AM4 and LGA1700 socket support
Good fit if
- You need a 240mm AIO for LGA1700 or AM4
- You want addressable RGB aesthetics
- You prefer a sleeved tubing design
Skip if
- You require support for newer sockets like AM5
- You need a 360mm radiator for higher heat loads
- You want an integrated LCD screen
Verdict: ASUS ROG Strix LC II 240mm AIO is a solid choice for users with LGA1700 or AM4 builds who prioritize RGB styling and reliable Asetek pump performance in a 240mm form factor.
ASUS Prime 240mm ARGB AIO Liquid Cooler
Best for: ASUS Prime motherboard builds
- Radiator Size
- 240mm
- Socket Compatibility
- AM5, AM4, LGA 1851, 1700, 1200, 115x
- Lighting Type
- ARGB
- Dimensions
- 10.9 × 4.7 × 1.1 inches
- Weight
- 3.3 pounds
View on Amazon: ASUS Prime 240mm ARGB AIO Liquid Cooler Affiliate link
The ASUS Prime LC 240 ARGB is a 240mm liquid cooler designed for AM5, AM4, and Intel LGA sockets. It features infinity mirror ARGB fans and a black sleeved tubing design. This unit weighs 3.3 pounds and measures 10.9 inches long. It suits users building with ASUS Prime motherboards who want matching aesthetics without the premium price of the ROG Strix series.
Pros
- 240mm radiator size for standard cases
- Infinity mirror ARGB lighting effects
- Supports AM5, AM4, LGA 1851, and LGA 1700 sockets
- Sleeved tubing for durability
Cons
- 240mm radiator holds less heat capacity than 360mm options
- No LCD display panel on the pump head
- Black color limits white build compatibility
Good fit if
- You are building with an ASUS Prime motherboard
- You need support for the latest AM5 or LGA 1700 sockets
- You prefer a black and ARGB aesthetic
Skip if
- You require a 360mm radiator for extreme overclocking
- You want a white colorway for your build
- You need an LCD display on the pump
Verdict: ASUS Prime LC 240 ARGB AIO is a solid mid-range option for users prioritizing socket compatibility and matching motherboard aesthetics over maximum cooling headroom.
Specifications side by side
| Spec | ASUS ROG Strix LC II 240mm Liquid Cooler | ASUS Prime 240mm ARGB AIO Liquid Cooler |
|---|---|---|
| Radiator Size | 240mm | 240mm |
| Socket Compatibility | AM4, TR4, LGA 1700, 1200, 115x, 2066 | AM5, AM4, LGA 1851, 1700, 1200, 115x |
| Lighting Type | Addressable RGB | ARGB |
| Lighting | not stated | Infinity Mirror |
| Size | 240Mm | 240mm|ARGB|Black |
| Dimensions | 14.1 × 9.18 × 5.25 inches | 10.9 × 4.7 × 1.1 inches |
| Weight | 2.2 pounds | 3.3 pounds |
| Model | ROG STRIX LC II 240 | PRIME LC 240ARGB |
| Color | not stated | BLACK |
Frequently asked questions
Which AIO has a smaller pump head for better RAM clearance?
The ASUS Prime 240mm ARGB AIO has a significantly smaller pump head. Its dimensions are 4.7 inches in width and 1.1 inches in height. In contrast, the ROG Strix LC II pump block measures 9.18 inches wide and 5.25 inches high. The Prime model’s compact design leaves more room for tall memory modules on your motherboard.
Does the Prime LC support the latest Intel sockets?
Yes, the ASUS Prime 240mm ARGB AIO supports current Intel platforms. It includes compatibility for LGA 1851. The ROG Strix LC II focuses on LGA 1700 and AM4 sockets. If you are building with a newer 14th or 15th Gen Intel CPU, the Prime model is the suitable choice for your socket requirements.
Which cooler is lighter to install?
The ROG Strix LC II is the lighter option. It weighs 2.2 pounds. The ASUS Prime 240mm ARGB AIO weighs 3.3 pounds. The weight difference may matter if you are concerned about motherboard sag or the overall weight on your CPU socket during installation. The Strix model places less physical load on your system.
Do both coolers feature addressable RGB lighting?
Yes, both units offer addressable RGB lighting for your build. The ASUS Prime LC uses an Infinity Mirror design for its lighting effects. The ROG Strix LC II also includes ARGB capabilities to match your chassis aesthetic. You can sync the lighting with compatible motherboards to create a unified look for your PC components.
Which AIO is better for AM5 builds?
The ASUS Prime 240mm ARGB AIO is the better choice for AM5 systems. It explicitly lists AM5 support in its specifications. The ROG Strix LC II only lists AM4 and LGA 1700 compatibility. If your motherboard uses the AM5 socket, the Prime model ensures proper mounting and cooling performance for your AMD processor.
How do the radiator dimensions compare between the two?
The ASUS Prime 240mm ARGB AIO has a shorter radiator length. It measures 10.9 inches in length. The ROG Strix LC II radiator is 14.1 inches long. Both are 240mm in size, but the Prime model’s compact length may fit better in smaller cases or allow for different fan placement options within your chassis.