Thermalright
Peerless Assassin 120 SE
Best dual-tower air cooler for high-performance gaming and workstation builds.
The Thermalright Peerless Assassin 120 SE is a high-performance CPU air cooler featuring a robust Dual-Tower Side Flow design engineered for superior heat dissipation. It offers broad compatibility across modern CPU platforms, supporting sockets like LGA1700, LGA1200, AM4, and AM5. This model is available in versions, including one with Addressable RGB (ARGB) lighting for customizable aesthetics. Customers highly rate this cooler for its excellent cooling efficiency and power management, reflecting its strong performance in demanding computing environments.
$33.06
Owner Satisfaction
4.8
/ 5
Category Rank
6
/ 3597
#6 in Computer System Cooling Parts
Price vs Category Average
-78%
Below average
Cooling Type
Air Cooler (Dual-Tower)
/ Air Cooler (Dual-Tower)
Who it's for
- Budget-conscious builders seeking premium thermal performance
- System builders using tall, high-performance RAM modules
- Power users running high-wattage processors
Who should skip it
- Quiet-computing enthusiasts sensitive to fan acoustics
- Users with compact cases or limited internal clearance
- Beginners intimidated by complex or fiddly installation processes
Performance breakdown
Thermal Dissipation
Dual-tower design handles high-wattage processors with remarkable ease.
Socket Versatility
Broad support ensures seamless installation across current Intel and AMD platforms.
Acoustic Profile
Fans maintain a whisper-quiet operation even under heavy system loads.
Installation Ease
Mounting hardware is straightforward, though the dual-tower size requires careful clearance.
Aesthetic Customization
Integrated ARGB lighting offers vibrant, syncable visuals for modern builds.
Build Integrity
Robust construction provides a premium feel and long-term structural reliability.
Key Specs
Cooling Type
Air Cooler (Dual-Tower)
Model Number
PA-120SE
CPU Socket Support
LGA 1700, LGA 1200, AM4, AM5
Cooling Method
Side Flow
RGB Lighting
Yes (on specific versions)
Features
- Powerful Dual-Tower cooling architecture
- Side Flow radiator configuration
- Supports customizable ARGB lighting
- High cooling efficiency
- Wide CPU socket compatibility
- Designed for high-performance cooling
What customers say
Customers overwhelmingly praise the Thermalright Peerless Assassin 120 SE for its incredible value. The core sentiment centers on its exceptional performance to cost ratio, frequently matching or exceeding much pricier high-end air and liquid coolers. Users feel this cooler significantly over-delivers on thermal management for its low price point, making it a top recommendation for budget builders. While the dual tower design is large, installation is generally straightforward, and the included quality thermal paste is appreciated. Minor considerations involve potential RAM clearance with tall modules and fan noise only at maximum speeds. Overall, satisfaction is immense due to its robust and reliable cooling capabilities.
Know before you buy
The Peerless Assassin 120 SE is a dual-tower cooler, so it is quite bulky. Before purchasing, verify your PC case's maximum CPU cooler height clearance to ensure the side panel will close properly.
Yes, this model is compatible with modern mainstream sockets including Intel LGA 1700 and LGA 1200, as well as AMD AM4 and AM5 platforms.
If you choose the ARGB version, the lighting is designed to connect directly to the 5V 3-pin ARGB header on your motherboard. You can then control the lighting effects through your motherboard's native software.
The dual-tower design can overhang the RAM slots on some motherboards. It is recommended to use low-profile memory sticks to avoid any physical clearance issues during installation.
The mounting system is straightforward and follows standard procedures for modern air coolers. Thermalright includes a clear manual, though you will need a long-reach screwdriver to access the mounting screws between the two towers.
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