
Best selling Water cooling radiators from Alphacool
On this page you’ll find a ranking of the best Water cooling radiators from Alphacool. To give you a quick overview, we’ve added the most important product details. This page always stays fresh and updates automatically.
1. Alphacool NexXxoS ST30 Full Copper 360mm
Free space during assembly is one of the central points on which the development department of the Alphacool NexXxos ST30 360mm has concentrated. All main elements, not only the fins and channels, but also the antechambers are made of copper. This already brings an increase in performance due to the material, where other radiators fall by the wayside. The internal design is at eye level with radiators from other manufacturers and separate antechambers clearly define the path of the coolant. A high flow rate increases the cooling capacity in the complete system. The flat end chamber of the NexXxos ST30 360mm also allows more space during installation, as the overall length is thus smaller.

2. Alphacool NexXxoS ST30 Full Copper 420mm
These models are among the first radiators that truly deserve the "Full Copper" designation. All main components, not just the fins and channels, but also the pre-chambers, are made of copper. This inherently provides a performance advantage that other radiators cannot match. The internal structure is constructed to be on par with radiators from other manufacturers, and separate pre-chambers clearly define the path of the coolant. A high flow rate enhances the cooling performance throughout the entire system. A flat end chamber also creates more space during installation, as the overall length is reduced. Space during installation is one of the key focus areas for the development team at Alphacool. The pre-chamber has three options for positioning the inlet and outlet connections, reducing the need for angles, which increases flow and provides more installation options. Therefore, this radiator can be installed even in tight cases where internal installation would otherwise be impossible.

3. Alphacool NexXxoS UT60 Full Copper 360mm Special Edition
The NexXxoS UT60 Full Copper 360mm Radiator from Alphacool is a highly advanced solution for water cooling, characterized by its complete construction from pure copper. This material ensures superior thermal conductivity, allowing for efficient heat dissipation at high temperatures. Compared to conventional aluminum radiators, the UT60 offers significantly improved cooling performance, making it the ideal choice for high-performance systems that require intense cooling. The radiator is designed for silent operation, meaning it achieves excellent performance even with standard low-speed fans. This minimizes noise levels without compromising cooling efficiency. Fan installation is straightforward and secure with the included M3 screws, while a special protection mechanism prevents the screws from penetrating the cooling fins. Weighing 1756 grams and featuring a robust design, the radiator is both powerful and durable.
- Made entirely of pure copper for optimal thermal conductivity
- Silent operation allows for the use of standard fans
- Easy fan installation with M3 screws
- Protection mechanism against screw penetration into the cooling fins
- Pressure tested up to 1.5 Bar for increased safety.

4. Alphacool NexXxoS XT45 Full Copper 140mm
The NexXxoS XT45 Full Copper 140mm Radiator from Alphacool is a highly advanced solution for water cooling, distinguished by its use of pure copper in all water-carrying components. This design allows for superior thermal conductivity, significantly enhancing cooling performance compared to conventional aluminum radiators. The radiator is specifically designed for silent operation, meaning it can be used with standard low-speed fans without experiencing significant performance loss. This makes it an ideal choice for users seeking efficient cooling with minimal noise levels. Additionally, the radiator offers high flexibility in configuration, as it is compatible with various types of fans to achieve maximum cooling performance. The robust construction and high-quality materials ensure a long lifespan and reliability in demanding applications.
- Pure copper construction for optimal thermal conductivity
- Silent operation possible with standard fans
- High flexibility in fan configuration
- Sturdy design for long lifespan
- Pressure tested up to 2 Bar for added safety.

5. Alphacool NexXxoS UT60 Radiator Block
The Alphacool NexXxoS UT60 Radiator Block is a highly advanced solution for water cooling, specifically designed for high-performance systems. With its innovative X-Flow design, this radiator optimizes the water circulation by directing the flow from one side to the other, ensuring efficient cooling. The radiator is made entirely of copper, which provides excellent thermal conductivity and outstanding cooling performance. The recessed closure screws not only offer an appealing design but also flexibility in installation, allowing users to customize the radiator according to their individual needs. Capable of dissipating up to 420 W at an ambient temperature of 30 °C and a fan speed of 12,000 rpm, the NexXxoS UT60 is an excellent choice for anyone looking to maximize their system's performance. The combination of high-quality materials and thoughtful design makes this radiator a top choice for demanding applications.
- X-Flow design for optimized water circulation
- Made entirely of copper for high thermal conductivity
- Recessed closure screws for flexible installation
- Pressure tested up to 1.5 Bar for increased safety
- Compatible with various fan configurations.

Alphacool NexXxoS UT60 Radiator Block
40 mm
6. Alphacool Universal feet for radiators
The Alphacool Universal Feet are ideal for setting up radiators externally. The feet can be easily mounted to a radiator, which can then be placed securely on the floor, table, or any other location.
Stable
With a length of nearly 20 cm, the feet provide a secure stand. They are also decoupled. Generous foam padding on the underside prevents the transmission of vibrations.
Multi-compatible
The stand feet are suitable for almost all radiator sizes. The maximum thickness of the radiator including fans can be up to 86 mm. The length of the radiator does not matter. Each set includes two feet that can be mounted independently.
Technical specifications
L x W x H (total) 19.4 x 4.3 x 4 cm
Material: Steel, plastic
Color: Black.

7. Alphacool Core XT45 Full Copper 360mm Radiator
Alphacool Core XT45 Full Copper 360mm Radiator: Maximum surface area and flexibility for high-end systems. The Alphacool Core XT45 Full Copper 360mm Radiator is the perfect solution for providing a high-end system with unmatched cooling performance. With a thickness of 45 mm, this triple radiator offers the ideal sweet spot between surface area and installation flexibility. It is made entirely of pure copper – from the fins to the header tanks – to ensure unparalleled heat dissipation. The multiport design allows for extremely flexible piping and facilitates bleeding.
Highlights:
- 360 mm cooling surface: Provides maximum capacity for cooling CPU and GPU in demanding custom loops.
- 45 mm thickness: The optimal balance between high cooling capacity and broad case compatibility.
- Full copper construction: Fins, channels, and header tanks made of pure copper – the best foundation for maximum thermal performance.
- Multiport design: Features six G1/4 inch ports for extremely flexible piping and easy bleeding (3x In, 3x Out).
- High durability: Extremely robust construction for maximum reliability in continuous operation.
Technical specifications:
- Type: Triple radiator (3x 120 mm)
- Dimensions: approx. 396 x 124 x 45 mm (L x W x H)
- Material: Full copper
- Connections: 6x G1/4 inch threads
- Thickness: 45 mm
The Core XT45 360mm is the versatile high-performance radiator that guarantees your system's performance.

8. Alphacool NexXxoS ST30 Full Copper X-Flow 420mm Radiator
Short info: Alphacool NexXxoS X-Flow ST30 full copper 420mm cooling system - black
Product description: Alphacool NexXxoS X-Flow ST30 full copper 420mm cooling system
Product type: Cooling system
Color: Black
Product material: Steel, brass, copper
Dimensions (width x depth x height): 47.7 cm x 14.4 cm x 3 cm
Weight: 1.17 kg
Features: 6 x 1/4" threads
Detailed information:
General
Product type: Cooling system
Product material: Steel, brass, copper
Width: 47.7 cm
Depth: 14.4 cm
Height: 3 cm
Weight: 1.17 kg
Compatible fan diameter: 3 x 140 mm
Color: Black
Miscellaneous: Mounting kit included
Performance features: 6 x 1/4" threads.

9. Alphacool NexXxoS XT45 Full Copper 360mm
The Alphacool NexXxoS XT45 Full Copper 360mm Radiator is a highly advanced solution for water cooling systems, tailored to meet the needs of demanding users. With a focus on performance and efficiency, this radiator delivers outstanding cooling performance, supported by the use of high-quality copper in all main components, including the inlet chambers. This design ensures high flow rates and improved heat dissipation, making it an ideal choice for high-performance systems. The radiator is designed for easy installation, while the flat end chamber provides additional space. The combination of thoughtful design and premium materials makes the NexXxoS XT45 one of the best radiators on the market.
- Fully made of copper, including the inlet chambers, for optimal heat dissipation
- High flow rate through separate inlet chambers, enhancing cooling performance throughout the system
- Flat end chamber design for more installation freedom and reduced overall length
- Pressure tested up to 2 Bar to ensure reliability and durability.

10. Alphacool NexXxoS HPE-45 Radiator 420mm
420 mm radiator for custom water cooling. Copper radiator with high fin density for optimal heat dissipation. Provides enough power for high-end hardware. Four G1/4-inch threads for loop connection. An additional G1/4-inch thread for filling and draining. Very easy installation.
Efficient cooling performance for custom water cooling. The Alphacool NexXxoS HPE-45 radiator is your ideal solution for custom water cooling. The high fin density of 16 FPI allows for maximum airflow through thin copper fins, ensuring very efficient heat transfer. The radiator is particularly large at 420 mm, making it suitable only for especially large towers.
The simple design with a matte finish allows it to be visually integrated into almost any build. The connection to the water cooling system is made via four G1/4-inch ports. An additional G1/4-inch port serves as a fill-drain port, making the filling and draining of your custom loops as easy as possible.
Technical details:
- Dimensions: 144 x 45 x 455.5 mm (W x H x D)
- Weight: 1,533 g
- Color: Black
- Material: Copper
- Fin density: 16 fins per inch
- Threads: 4x G1/4 inch, 1x G1/4 inch fill-drain port
- Fans: Fan size: 140 mm, Number of fans: 3x single-sided, 6x double-sided
- Delivery includes: 1x Alphacool NexXxoS HPE-45 Full Copper 420 mm radiator, 12x M3x5 case screws, 12x M3x30 fan screws, 1x hex key
Note: We recommend using clear, transparent cooling liquids. Pastel liquids can clog and damage components.
