Thermalright Assassin X 120-A Dark Review: Who It Fits and Who Should Skip It
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This thermalright assassin x 120 a dark review examines a single-tower air cooler built for all-black builds. It features a dark heatsink and matching black fan to hide heat-pipe ends. The cooler relies on four 6mm heat pipes and a 2400RPM PWM fan. These specs support up to 240W TDP. It delivers 85.35CFM airflow. The design fits cases with 151mm clearance. You get broad socket support for modern AMD and Intel platforms. This unit prioritizes clean aesthetics alongside solid cooling performance for demanding workloads.
What stands out
- Four 6mm heat pipes with AGHP design move heat into the aluminum fin stack.
- TL-N12-R9 V2 fan runs up to 2400RPM for 85.35CFM airflow.
- Continuous-ring blade-tip design improves airflow direction and stability at high speeds.
- All-black aesthetic conceals exposed heat-pipe ends for side-window cases.
- Supports AMD AM5/AM4 and Intel LGA1851/1700/1200/115X sockets.
Who it fits
Good fit for
You should consider this cooler if you build in an all-black theme. The dark finish hides heat pipes for a clean look. It suits users with cases offering over 151mm of clearance. Gamers and multitaskers with CPUs up to 240W TDP will find the four heat pipes and high-airflow fan sufficient. It works well on both AMD and Intel platforms. If you need a straightforward, aesthetic-focused air cooler without RGB, this fits your setup.
Who should skip it
Skip this option if your case has less than 151mm of CPU cooler clearance. The single-tower design is too tall for compact mATX or ITX builds. You should also look elsewhere if you require RGB lighting, as this model is strictly black. Users with CPUs exceeding 240W TDP may need a larger dual-tower cooler. Additionally, if you prefer pre-applied thermal paste, note that you must use the included TF4 paste manually during installation.
Verdict: This cooler offers a clean, all-black aesthetic with reliable cooling for mid-to-high-end CPUs. It is a practical choice for builders who prioritize style and solid airflow specs.
Key specs explained for this cooler
Fan Size: 120mm
This dimension defines the fan blade diameter. A 120mm fan fits standard single-tower coolers and case mounts. You can replace it with other 120mm fans if needed. Larger fans move more air at lower speeds. Smaller fans spin faster but may create more noise. Check your case for 120mm mounting holes before buying.
Fan Speed: 2400RPM
This rating shows the maximum fan rotation speed. Higher speeds push more air through the fins. You get better cooling under heavy loads. The fan slows down for quieter operation during light tasks. Compare this to other coolers to see if the airflow matches your case airflow needs and noise tolerance.
Heat Pipes: 4
This count indicates four 6mm copper pipes inside the cooler. They carry heat from the base to the aluminum fins. More pipes usually mean better heat spreading. This design helps keep the CPU cooler during gaming or rendering. Check other models to see if more pipes offer a significant temperature drop for your specific CPU.
TDP Rating: 240W
This number represents the maximum thermal power the cooler handles. It suits high-end processors that generate significant heat. You need this capacity for demanding workloads like video editing or gaming. Lower TDP ratings may struggle with powerful chips. Compare this rating against your CPU's actual thermal output when shopping.
Cooler Height: 151mm
This measurement is the total vertical size of the unit. You must check your case for clearance above the CPU socket. If your case allows less than 151mm, this cooler will not fit. Measure from the motherboard surface to the top of the case. Always leave a small margin for safe installation and airflow.
Design and Build Details
The listing describes a single-tower layout with a dark heatsink and matching black fan. This finish conceals exposed heat-pipe ends for a cleaner look in side-window cases. The cooler uses four 6mm heat pipes with AGHP design to move heat into the aluminum fin stack. You get a unified aesthetic without RGB elements. The design prioritizes a uniform dark appearance for builds that avoid colorful components.
According to the listing, the unit measures 5.94 inches in height, 4.72 inches in length, and 1.81 inches in width. It weighs 1.1 pounds. The 151mm height requires case clearance above the CPU socket. You must check for nearby component interference before installation. The single-tower structure keeps the profile compact while supporting broad platform compatibility for AMD AM5/AM4 and Intel LGA1851/1700/1200/115X sockets.
The included TL-N12-R9 V2 fan is a 120mm PWM unit. It runs up to 2400RPM with 85.35CFM airflow and 2.95mm H2O static pressure. A continuous-ring fan design stabilizes blades at high speeds. The 4-pin PWM control allows speed adjustment based on load. You can rely on this control for quiet operation during light tasks and increased cooling during heavy workloads. The listing notes the retention of the motherboard backplate for AMD installations.
Setup and Everyday Use Guide
Installation requires checking your case for sufficient clearance. The cooler stands 151mm tall. You need more than that space above the CPU socket. This fits most standard mid-tower and full-tower cases. The unit supports AMD AM5 and AM4 sockets. It also works with Intel LGA1851, 1700, 1200, and 115X platforms. For AMD builds, you must keep the motherboard’s original backplate. Do not remove it. The package includes TF4 thermal paste. You apply this paste to the CPU surface before mounting the cooler. The four 6mm heat pipes use AGHP design. This helps move heat from the processor into the aluminum fins. The single-tower design keeps the profile low. It does not block RAM slots in most configurations. Check your RAM height before buying. Daily use relies on the 120mm PWM fan. It runs up to 2400RPM. The four-pin connector allows speed control. The motherboard adjusts fan speed based on load. Light tasks keep the fan slow. Heavy gaming or rendering pushes it higher. The fan delivers up to 85.35CFM of airflow. Static pressure reaches 2.95mm H2O. This helps push air through the dense fin stack. The continuous-ring design on the blades adds stability at high speeds. You get consistent cooling without excessive noise during light work. The dark finish hides heat-pipe ends. This looks clean in side-window cases. The cooler handles TDPs up to 240W. This covers most gaming and multitasking needs.
Before You Buy This Cooler
This single-tower air cooler fits many builds, but you must verify your case dimensions first. The unit stands 151mm tall. Your case must provide more than that clearance above the CPU socket. Check nearby RAM height and front fan mounts to avoid physical interference. The cooler supports AMD AM5, AM4, and Intel LGA1851, 1700, 1200, and 115X sockets. You need to retain the motherboard’s original backplate for AM4 and AM5 installation. The listing includes TF4 thermal paste, so you do not need to buy extra. This model suits users who want a clean, all-black aesthetic without RGB lighting. It competes with other single-tower options by offering a 240W TDP rating. If you plan to overclock heavily, ensure your case airflow complements the 2400RPM fan. Regularly dust the fins to maintain the 85.35CFM airflow. This cooler is a practical choice for standard gaming or multitasking loads.
Check before you buy
- Verify case clearance exceeds 151mm height.
- Confirm socket compatibility with your motherboard.
- Check RAM height for interference.
- Ensure front fans fit nearby.
The product at a glance
Thermalright Assassin X 120 Dark CPU Cooler
Best for: all-black builds with 240W TDP needs
- Socket Compatibility
- AM5/AM4, LGA1851/1700/1200/115X
- Cooler Height
- 151mm
- Heat Pipes
- 4
- Tower Design
- Single-Tower
- Fan Size
- 120mm
- TDP Rating
- 240W
View on Amazon: Thermalright Assassin X 120 Dark CPU Cooler Affiliate link
This single-tower air cooler features a dark aesthetic with four 6mm heat pipes and a 120mm PWM fan. It supports up to 240W TDP and runs at 2400RPM. The design fits cases with over 151mm clearance and includes TF4 thermal paste. It suits users building all-black systems who need reliable cooling for gaming or multitasking workloads.
Pros
- Four 6mm heat pipes with AGHP design
- 2400RPM PWM fan delivers 85.35CFM airflow
- Supports up to 240W TDP
- Includes TF4 thermal paste
Cons
- Single-tower design limits cooling capacity compared to dual-tower models
- 151mm height requires specific case clearance
- No RGB lighting for aesthetic customization
Good fit if
- You want a clean, all-black build without RGB
- You have a case with more than 151mm of CPU cooler clearance
- You need a cooler rated for up to 240W TDP
Skip if
- Your case provides less than 151mm of clearance
- You require RGB lighting for your build
- You need a dual-tower cooler for extreme overclocking
Verdict: Thermalright Assassin X 120-A Dark is a practical choice for users building all-black systems who need reliable cooling for up to 240W TDP. It fits those with sufficient case clearance who prefer a clean look over RGB customization.
Specifications side by side
| Spec | Thermalright Assassin X 120 Dark CPU Cooler |
|---|---|
| Socket Compatibility | AM5/AM4, LGA1851/1700/1200/115X |
| Cooler Height | 151mm |
| Heat Pipes | 4 |
| Tower Design | Single-Tower |
| Fan Size | 120mm |
| TDP Rating | 240W |
| Fan Speed | 2400RPM |
| Lighting | Non-RGB |
| Color | Black |
| Features | Fan |
| Dimensions | 4.72 × 1.81 × 5.94 inches |
| Weight | 1.1 pounds |
| Size | 120mm |
| Model | ASSASSIN X 120-A DARK |
Frequently asked questions
Is the Thermalright Assassin X 120-A Dark suitable for high-TDP processors?
Yes, it supports up to 240W TDP. This makes it practical for modern high-performance CPUs. The single-tower design with four 6mm heat pipes helps manage heat efficiently. You should ensure your case has enough clearance for the 151mm height. This cooler is best for users who need reliable cooling without excessive bulk.
Does this cooler come with an RGB fan?
No, it does not feature RGB lighting. The listing specifies a black fan and dark heatsink finish. This design choice hides heat-pipe ends for a clean look in side-window cases. It is ideal for all-black builds where you prefer a uniform appearance over customizable lighting effects.
What is the maximum height clearance required for installation?
The cooler stands 5.94 inches tall, which equals 151mm. You must verify that your case provides more than this space above the CPU socket. This dimension is critical for fitting standard mid-tower and full-tower cases. Always check for clearance before purchasing to avoid conflicts with RAM or case walls.
Which CPU sockets does the Assassin X 120-A Dark support?
It supports AMD AM5 and AM4 sockets. The mounting hardware is designed for these specific platforms. This compatibility covers a wide range of modern AMD processors. You do not need to buy separate brackets for these common socket types. Check your motherboard socket type before installation.
How heavy is the Thermalright Assassin X 120-A Dark?
The unit weighs 1.1 pounds. This weight is manageable for standard motherboards. The single-tower design keeps the load reasonable. You should ensure your motherboard has adequate support to handle this weight. The build quality feels solid without being overly heavy for a single-fan cooler.
Can I replace the fan with a different 120mm model?
Yes, the fan size is 120mm. This is a standard dimension that allows for easy replacement. You can swap it for other 120mm fans if you prefer different noise levels or airflow. The cooler relies on this fan size for its cooling performance. Replacement is straightforward if you need quieter operation.
Is this cooler good for an all-black PC build?
It is an excellent choice for all-black builds. The dark heatsink and matching black fan create a cohesive look. This finish conceals exposed heat-pipe ends for a cleaner aesthetic. If you prioritize a uniform appearance over RGB customization, this cooler fits your needs perfectly.
What fan speed does the Assassin X 120-A Dark use?
It uses a PWM fan with a maximum speed of 2400 RPM. This speed helps move air through the heatsink fins. The PWM control allows for dynamic speed adjustments based on temperature. You get efficient cooling while maintaining reasonable noise levels during typical use.