Description
Thermalright Assassin X 90 SE ARGB CPU Air Cooler – Efficient Cooling Meets Striking ARGB Design
Enhance your gaming rig or professional workstation with the Thermalright Assassin X 90 SE ARGB CPU Air Cooler – a powerful and visually striking cooling solution designed for modern CPU platforms. Built for performance and engineered for silence, this air cooler offers a balanced combination of efficient thermal management, low noise levels, and vibrant addressable RGB lighting that syncs with your system.
Whether you’re building a compact gaming PC or upgrading an older system, the Assassin X 90 SE ARGB delivers optimal airflow and cooling efficiency without compromising on aesthetics or compatibility.
Product Specifications Table
| Feature | Specification |
|---|---|
| Model Name | Assassin X 90 SE ARGB |
| Manufacturer | Thermalright |
| Cooler Type | Single Tower CPU Air Cooler |
| Heatpipes | 4 x 6mm high-efficiency copper heatpipes |
| Fan Size | 92mm (ARGB PWM Fan) |
| Fan Speed | 800 – 2500 RPM ±10% |
| Air Flow | Up to 45.8 CFM |
| Noise Level | 19 – 25.4 dBA |
| Fan Bearing Type | S-FDB (Fluid Dynamic Bearing) |
| Rated Voltage | 12V DC (Fan), 5V (ARGB) |
| Compatibility (Intel) | LGA 1700 / 1200 / 115X |
| Compatibility (AMD) | AM5 / AM4 |
| Dimensions (with fan) | 94mm (L) x 77mm (W) x 125mm (H) |
| ARGB Lighting | 5V 3-pin ARGB sync with motherboard software |
Key Features and Benefits
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High-Efficiency Thermal Design
Features four 6mm heatpipes that make direct contact with the CPU surface for rapid heat dissipation and excellent cooling performance. -
Compact 92mm Form Factor
With a smaller tower size and fan diameter, it fits perfectly into Micro-ATX and Mini-ITX cases without interfering with RAM or PCIe slots. -
ARGB PWM Fan with Synchronization Support
Customize lighting effects through supported 5V 3-pin ARGB motherboard headers from major brands like ASUS Aura Sync, MSI Mystic Light, Gigabyte RGB Fusion, and ASRock Polychrome. -
Optimized Fan Speed Control
The 92mm PWM fan automatically adjusts its speed between 800 and 2500 RPM to provide a balance between performance and silence depending on workload and CPU temperature. -
Silent Fluid Dynamic Bearing (S-FDB)
Engineered with S-FDB technology to ensure ultra-quiet operation and extended fan lifespan with reduced vibration. -
Wide CPU Compatibility
Supports all major mainstream CPU sockets from both Intel and AMD, including the latest LGA 1700 and AM5 platforms. -
Easy and Secure Installation
Comes with a universal mounting kit and user-friendly instructions, making it easy to install even for first-time builders. -
Strong TDP Handling
Rated to cool CPUs with TDPs up to 150W, making it suitable for mainstream and high-performance processors.
Superior Cooling for Gaming and Productivity
The Thermalright Assassin X 90 SE ARGB is built for enthusiasts who demand a balance of high-performance cooling and customizable aesthetics. It uses a direct-touch copper heatpipe design that transfers heat efficiently from the processor to the aluminum fin stack. Combined with a high-speed 92mm fan, this cooler is capable of maintaining optimal temperatures during gaming, streaming, and content creation tasks.
Despite its compact size, the Assassin X 90 SE doesn’t compromise on cooling potential. It is engineered to outperform stock coolers by a significant margin, reducing thermal throttling and improving CPU longevity. With up to 45.8 CFM of airflow, it quickly dissipates heat, ensuring smooth system performance.
Designed for Quiet Operation
Noise levels are an important factor for any PC builder, especially in quiet workspaces or living rooms. Thanks to its advanced fluid dynamic bearing and refined fan blade design, the cooler operates quietly even under load. At idle, it maintains a near-silent presence, and under heavy load, it tops out at 25.4 dBA, which is quieter than many stock coolers on the market.
Eye-Catching ARGB Lighting
Aesthetics play a key role in modern PC builds, and the Assassin X 90 SE ARGB meets that demand with full-spectrum addressable RGB lighting. The ARGB fan features multiple LEDs that can be customized using your motherboard’s lighting software, offering countless combinations of colors and effects.
Whether you’re building a minimalist setup or a full-blown RGB showcase, this cooler blends performance with personality.
Versatile and Case-Friendly Compatibility
One of the standout features of the Assassin X 90 SE ARGB is its case-friendly height of 125mm, making it ideal for small form factor and mid-tower builds. Despite its compact stature, it delivers impressive thermal results, especially in space-constrained environments where airflow might be limited.
It also avoids RAM clearance issues thanks to its centered tower design, giving users peace of mind during installation.
Why Choose Thermalright?
With a history of innovation and engineering excellence, Thermalright has been a respected name in the thermal solutions industry for over 20 years. The Assassin X 90 SE ARGB continues that tradition with premium materials, quality construction, and performance tuning that ensures reliability under pressure.
Ideal Use Cases
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Gaming PCs: Perfect for cooling mid to high-tier CPUs in gaming setups with limited space.
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Small Form Factor Builds: Compact size makes it ideal for Mini-ITX or Micro-ATX systems.
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Workstations: Keeps CPU temperatures under control during video editing, 3D modeling, and multitasking.
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RGB-Themed Builds: Adds vibrant ARGB lighting that enhances the visual appeal of your rig.
Final Thoughts
The Thermalright Assassin X 90 SE ARGB is more than just a cooling solution — it’s a compact powerhouse built for modern-day performance demands. Whether you’re a gamer, content creator, or system builder, this cooler offers a winning combination of cooling efficiency, aesthetic customization, and quiet operation. Backed by Thermalright’s engineering pedigree, it’s a reliable choice that enhances both your system’s thermal and visual performance.

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