EK-Quantum Surface S360 - Black
Best slim radiator for compact custom water cooling builds.
The EK-Quantum Surface S360 is a high-performance radiator from EK Waterblocks, engineered for exceptional cooling within space-constrained PC builds. Its ultra-slim 30mm thickness makes it ideal for tight installations without sacrificing thermal capability. This radiator delivers outstanding performance, particularly when paired with low to medium-speed fans. It features 16 copper tubes, each 2mm wide, ensuring optimal, low-restriction coolant flow throughout your custom loop. The high-grade copper fins are designed with a 20 FPI density to balance heat transfer and air resistance effectively. For maximum cooling power, EK recommends adding another radiator rather than using a Push/Pull fan configuration.
$102.99
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Owner Satisfaction
4.7
/ 5
Category Rank
152
/ 3597
#152 in Computer System Cooling Parts
Price vs Category Average
-32%
Below average
Thickness
30
/ mm
Who it's for
- Performance enthusiasts seeking maximum heat dissipation efficiency
- System builders working within compact or space-constrained PC cases
- Custom loop designers needing easier maintenance and filling options
Who should skip it
- Budget-conscious builders looking for cost-effective cooling solutions
- Overclockers requiring maximum thermal capacity for high-wattage hardware
- Beginners wanting a hassle-free, ready-to-install cooling component
Performance breakdown
Space Efficiency
Ultra-slim profile fits seamlessly into the most restrictive chassis layouts.
Low-Speed Performance
Optimized fin density excels when paired with quiet, low-RPM fans.
Flow Restriction
Sixteen wide copper tubes ensure minimal resistance for your pump loop.
Thermal Transfer
High-grade copper construction provides efficient heat dissipation for modern components.
Build Quality
Premium materials and robust construction reflect EK's high manufacturing standards.
Scalability
Best utilized in multi-radiator setups rather than aggressive push-pull configurations.
Key Specs
Thickness
30mm
Tubes
16 copper 2mm wide tubes
Fin Density
20 FPI
Material
Copper
Radiator Size
360mm
Cooling Method
Water cooling
Model Number
EK-QTM-SURF-S280-BK
Category
Radiator
Features
- Ultra-slim 30mm thickness for tight spaces
- Exceptional cooling at low and medium fan speeds
- Optimized coolant flow via 16 copper tubes
- High-grade non-louvered copper fins
- Balances thermal transfer and air resistance
- Designed for custom water cooling loops
What customers say
Customers overwhelmingly praise the EK Quantum Surface S360 for its exceptional thermal performance, especially considering its slim 30mm profile, making it perfect for compact builds. The build quality receives high marks; users find the radiator robust with a flawless black finish, reflecting premium status. A key benefit is the low flow restriction, which promotes system efficiency. Users value how the optimized fin density balances high heat dissipation with manageable noise levels when paired with medium fans. While positioned at a premium price, the consensus is that the superior cooling efficiency, reliability, and aesthetic integration justify the investment for enthusiast liquid cooling setups.
Know before you buy
The 30mm thickness is specifically engineered for tight spaces where standard radiators might cause clearance issues. However, you should always measure your case's top or front radiator mounting area to account for the additional thickness of your chosen fans.
Yes, the S360 is optimized for low to medium-speed fans. Its 20 FPI fin density is balanced to provide efficient heat dissipation without requiring high-static pressure or noisy, high-RPM fan configurations.
EK does not recommend a Push/Pull configuration for this specific radiator. Because of its slim profile, you will see better thermal results by adding a second radiator to your loop rather than stacking extra fans on this single unit.
The radiator is built with high-grade copper for both the fins and the 16 internal tubes. This ensures excellent thermal conductivity and compatibility with other copper-based components in your custom loop.
No, the radiator features 16 individual 2mm-wide copper tubes designed to minimize flow restriction. It is engineered to maintain efficient coolant circulation even in complex, multi-component custom loops.
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$103