Alphacool
Alphacool NexXxoS ST25 Full Copper 120mm Radiator
Best slim radiator for compact liquid cooling builds.
The Alphacool NexXxoS ST25 is a slim radiator designed for optimal performance in small form factor PCs. It features an all-copper construction, including end chambers, water channels, and cooling fins, offering superior thermal conductivity compared to aluminum. With a fin density of 15 FPI and serrated fins, it balances airflow obstruction with cooling capacity, minimizing noise while maximizing heat dissipation. This radiator is ideal for builders needing efficient liquid cooling solutions in compact cases, providing necessary space for component installation.
$52.99
Owner Satisfaction
4.5
/ 5
Category Rank
1339
/ 3605
#1339 in Computer System Cooling Parts
Price vs Category Average
-65%
Below average
Dimensions
15112025.5
/ x x mm
Who it's for
- PC builders prioritizing maximum heat dissipation and longevity.
- Enthusiasts building small form factor PCs or multi-radiator setups.
- Custom loop users seeking long-term system integrity and peace of mind.
Who should skip it
- Gamers with high-end CPUs/GPUs needing extensive cooling power.
- Builders expecting a single radiator to cool multiple high-performance components.
- Budget-conscious builders considering more affordable cooling solutions.
Key Specs
Dimensions
151 x 120 x 25.5 mm
Material
Copper (radiator), Steel (outer housing)
Fins per Inch
15
Threads
2 x G1/4"
Fan Mounting Thread Size
M3
Fan Size
120 mm
Fan Slots
1 single sided / 2 double sided
Thermal Conductivity
400 W/(mK) (Copper)
Features
- All-copper construction for superior performance
- Slim design ideal for small form factor builds
- Optimized fin density for balanced cooling
- Serrated fins enhance airflow turbulence
- Low airflow obstruction for quieter operation
What customers say
Customers consistently praise this radiator for its exceptional build quality, particularly highlighting its full copper construction. This material choice is frequently cited as a key factor in its effective heat dissipation and long term reliability. Users appreciate the robust feel and the confidence it inspires in their liquid cooling setups. While its slim profile is valued for compatibility, the overall sentiment emphasizes its premium construction and solid performance, making it a dependable choice for those prioritizing durable components and efficient cooling within a reasonable price point.
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