EK-Quantum Surface S240 - ROCKSTAR EDITION
Best slim radiator for high-performance cooling in compact PC builds.
Elevate your PC's cooling with the EK-Quantum Surface S240 - ROCKSTAR EDITION. This premium, ultra-slim radiator, measuring just 30mm thick, is engineered for high-performance cooling in compact builds. It features 16 copper tubes and high-density copper fins for superior thermal transfer, excelling at lower fan speeds. The special edition boasts a stunning Prismatic Rockstar Sparkle powder coat, complemented by aluminum end caps and white-coated stainless-steel side plates for a premium aesthetic. Its core design offers enhanced performance, ensuring efficient heat dissipation with a sleek, modular profile.
$129.99
Owner Satisfaction
4.6
/ 5
Category Rank
528
/ 3597
#528 in Computer System Cooling Parts
Price vs Category Average
-14%
Below average
Thickness
30
/ mm
Who it's for
- Small-form-factor builders needing efficient cooling in tight spaces
- Enthusiasts seeking a unique, high-end aesthetic for custom loops
- System builders requiring flexible tubing paths and easy maintenance
Who should skip it
- Budget-conscious builders prioritizing value over exclusive branding
- Users preferring a quiet, low-noise computing environment
- Owners needing long-term part availability for future replacements
Performance breakdown
Low-Speed Thermal Efficiency
Optimized fin density delivers impressive cooling even with quiet fan profiles.
Compact Build Compatibility
The ultra-slim 30mm profile fits comfortably into space-constrained small form-factor cases.
Aesthetic Premium Finish
The unique sparkle powder coat offers a distinct, high-end visual statement.
Flow Restriction
Sixteen copper tubes ensure minimal resistance for your custom loop pump.
Build Durability
Stainless steel side plates and robust construction provide long-term structural integrity.
Installation Ease
Standardized M4 mounting makes integration into existing loops straightforward and simple.
Key Specs
Thickness
30mm
Tubes
16 copper tubes, 2mm wide
FPI (Fins Per Inch)
20
Fan Compatibility
120mm fans (25mm thickness)
Coating
Prismatic Rockstar Sparkle (Powder Coated)
Side Plates
Stainless steel with semi-matte white paint
Material
Copper fins, Aluminum end caps, Stainless-steel side plates
Screw Compatibility
M4 Philips round-headed screws
Features
- Ultra-slim 30mm profile for tight spaces.
- Exceptional performance at low fan speeds.
- 16 copper tubes for optimal coolant flow.
- High-density, non-louvered copper fins.
- Unique sparkle powder coat finish.
- Premium stainless steel side plates.
- Modular design for easy maintenance.
- Uses standard M4 mounting screws.
What customers say
This special edition radiator earns high praise primarily for its exceptional build quality and striking, exclusive design. Users consistently highlight the robust construction and flawless finish, noting how the unique aesthetic elevates the component into a visual centerpiece for custom loops. While it delivers the excellent heat dissipation expected from the Surface line, even within its slim profile, the main point of discussion is the premium price. Enthusiasts accept the higher cost for the superior looks and exclusivity. Overall, the product successfully merges elite engineering with luxury design, creating a highly desirable, premium cooling solution for those prioritizing visual appeal.
Know before you buy
With a thickness of only 30mm, this radiator is specifically designed for compact builds where space is limited. However, you should still verify that your case supports a 240mm radiator mount and has enough clearance for the total thickness of the radiator plus your 25mm fans.
Yes, the S240 is engineered to excel at lower fan speeds. Its high-density, non-louvered copper fin design allows for efficient heat dissipation even when airflow is restricted or fans are running at lower RPMs.
The EK-Quantum Surface S240 uses standard M4 Philips round-headed screws. This makes it compatible with most standard fan mounting hardware found in custom loop cooling kits.
The Rockstar Edition is a cosmetic variant featuring a unique Prismatic Rockstar Sparkle powder coat. It also includes premium aesthetic touches like white-coated stainless-steel side plates and aluminum end caps, while maintaining the same high-performance internal cooling architecture as the standard model.
The radiator core utilizes high-quality copper for both the 16 tubes and the fins to ensure optimal thermal transfer. The end caps are made of aluminum, and the side plates are constructed from stainless steel.
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$130