6 Best Alternatives to the Dynatron 2U Active Aluminum SP3 (2026)
As an Amazon Associate we earn from qualifying purchases. Links on this page are affiliate links.
The Dynatron A26 is a 2U active aluminum heatsink designed for AMD EPYC SP3 sockets. If you are looking for dynatron a26 2u active aluminum alternatives, you might need different dimensions or cooling methods. This original unit measures 4.5 by 6 by 5 inches and weighs one pound. It provides active cooling for standard server chassis.
You may want a different option if your case requires passive cooling or a smaller footprint. Some builds need higher TDP support or a different socket type like LGA 2011. The alternatives in this list were chosen because their specs overlap with the original. Each product shares key attributes such as 2U server height or SP3 compatibility. You can compare materials, dimensions, and active versus passive methods. This guide helps you find the right fit for your specific hardware requirements.
Our top pick: Dynatron 2U Active Aluminum SP3 Heatsink.
How alternatives compare to Dynatron A26
MITXPC Threadripper EPYC Passive 2U Heatsink
The MITXPC Threadripper EPYC Passive 2U Heatsink switches from active to passive cooling. This removes fan noise, making it ideal for silent server environments. However, it relies entirely on case airflow rather than forced convection. Its dimensions are 3.15 by 2.52 by 4.45 inches, which is significantly smaller than the Dynatron A26’s 4.5 by 6 by 5 inches. You should choose this if you prioritize silence and have robust chassis airflow. It still supports Socket SP3 for AMD EPYC and Threadripper systems. The trade-off is that passive cooling may struggle with high thermal loads without strong case fans.
Dynatron 2U Active CPU Cooler
The Seasonic Dynatron B13 2U Active CPU Cooler offers a compact active solution for 2U server chassis. It measures 3.15 by 2.6 by 4.25 inches, which is smaller than the Dynatron A26. This makes it suitable for builds with tight space constraints. It maintains active cooling for reliable heat dissipation. The model B13 is designed for standard server applications. You might pick this if you need a smaller footprint while retaining forced air cooling. It does not list specific socket compatibility in the provided data, so verify SP3 support before purchasing. It serves as a practical alternative for users who cannot accommodate the larger A26 dimensions.
Dynatron 2U Active CPU Cooler
The Dynatron B13 2U Active CPU Cooler by Dynatron itself features embedded heatpipes for efficient heat transfer. It shares the same compact dimensions of 3.15 by 2.6 by 4.25 inches as the Seasonic version. This model is lighter at 1 pound. It is designed for AMD EPYC systems in 2U form factors. You should choose this if you want a small active cooler with heatpipe technology. It provides a balance between size and cooling performance. The embedded heatpipes help move heat away from the CPU socket more effectively than simple aluminum fins. It fits users who need reliable airflow in constrained server builds.
Dynatron Threadripper and EPYC CPU Cooler
The MITXPC A39 280W TDP SP3 Cooler is built for high-TDP AMD EPYC and Threadripper systems. It includes a fan for active cooling, similar to the Dynatron A26. Its dimensions are 3.2 by 4.3 by 4.7 inches, which is narrower and shorter than the A26. It weighs 1.65 pounds, making it slightly heavier than the A26. This cooler is rated for 280W TDP, suggesting it handles higher thermal loads. You should pick this if you need reliable cooling for power-hungry CPUs in standard server or workstation builds. It supports Socket SP3 and offers a more compact profile while maintaining active fan cooling.
Dynatron 2U SP3 Heatpipe Cooler
The Dynatron T17 SP3 Aluminum CPU Heatsink is a larger active option for 2U AMD EPYC workstations. It measures 6 by 4 by 6 inches and weighs 2 pounds. This makes it wider and deeper than the Dynatron A26, which measures 4.5 by 6 by 5 inches. The T17 offers more surface area for heat dissipation. It is designed for SP3 sockets and provides reliable airflow for high TDP processors. You should choose this if you need maximum cooling capacity within a 2U form factor. The increased size allows for better thermal performance, though it requires more chassis space. It is a solid choice for demanding server builds.
Sunydog LGA 2011 2U Active CPU Cooler
The Sunydog LGA 2011 2U Active CPU Cooler is designed for LGA 2011 sockets, not SP3. It is a practical option for servers using E5-2600 series CPUs. It provides reliable active cooling in a compact 2U form factor. You should pick this if you are building or upgrading an LGA 2011 system rather than an AMD EPYC build. It does not fit Socket SP3 processors. The model name suggests a specific configuration for Intel platforms. It serves users who need 2U active cooling but have different socket requirements. Verify your motherboard socket compatibility before considering this alternative.
Quick picks
Our 7 picks
Dynatron 2U Active Aluminum SP3 Heatsink
Best for: 2U AMD EPYC SP3 active cooling
- Socket Compatibility
- Socket SP3
- Material
- Aluminum
- Server Height
- 2U
- Cooling Method
- Active
- Compatible Device
- AMD EPYC
- Dimensions
- 5 × 4.5 × 6 inches
View on Amazon: Dynatron 2U Active Aluminum SP3 Heatsink Affiliate link
The Dynatron A26 is a 2U active aluminum heatsink designed for AMD EPYC processors on Socket SP3. It measures 4.5 inches wide, 5 inches long, and 6 inches tall. The unit weighs 1 pound and uses embedded heatpipes for active cooling. This configuration suits server builds requiring standard 2U rack space and reliable thermal management for SP3 sockets.
Pros
- Active cooling with embedded heatpipes
- Compatible with Socket SP3 and AMD EPYC
- Standard 2U server height
- Aluminum construction
Cons
- Aluminum material has lower thermal conductivity than copper
- Requires separate fan installation for active cooling
- No vapor chamber for enhanced heat transfer
Good fit if
- You need a 2U active cooler for Socket SP3
- You are building an AMD EPYC server
- You prefer aluminum heatsinks for weight savings
Skip if
- You require passive cooling solutions
- You use a different socket type
- You need a copper or vapor chamber design
Verdict: The Dynatron A26 2U Aluminum SP3 Heatsink fits 2U server chassis needing active cooling for AMD EPYC SP3 systems. It is a practical option for standard rack builds.
MITXPC Threadripper EPYC Passive 2U Heatsink
Best for: Silent AMD Threadripper and EPYC servers
- Socket Compatibility
- sTRX4, TR4, SP3
- Material
- Aluminum, Heatpipes
- Server Height
- 2U
- Cooling Method
- Passive
- Dimensions
- 4.45" x 3.15" x 2.52"
- System Type
- Server
View on Amazon: MITXPC Threadripper EPYC Passive 2U Heatsink Affiliate link
The MITXPC Dynatron A34 is a passive 2U server heatsink designed for AMD Threadripper and EPYC processors. It supports sockets sTRX4, TR4, and SP3. The unit handles up to 180 watts of heat dissipation. It features an aluminum base with stacked fins and embedded heatpipes. Pre-applied Shin-Etsu 7762 thermal paste is included. Its dimensions are 4.45 x 3.15 x 2.52 inches. This cooler suits systems relying on case airflow for cooling.
Pros
- Passive cooling design eliminates fan noise
- Supports SP3, TR4, and sTRX4 sockets
- Handles up to 180W TDP
- Includes pre-applied Shin-Etsu 7762 thermal paste
Cons
- Passive cooling requires strong case airflow
- No integrated fan for active cooling
- Limited to 180W heat dissipation
Good fit if
- You need silent operation for a server
- You have a chassis with high static pressure fans
- You use AMD Threadripper or EPYC CPUs
Skip if
- You require active fan cooling
- Your CPU exceeds 180W TDP
- You lack dedicated server airflow
Verdict: The MITXPC Dynatron A34 Passive 2U Heatsink fits users who prioritize silence and have robust case airflow for their AMD Threadripper or EPYC systems.
Dynatron 2U Active CPU Cooler
Best for: 2U server chassis with active cooling needs
- Server Height
- 2U
- Cooling Method
- Active
- Dimensions
- 3.15 x 2.6 x 4.25 inches
View on Amazon: Dynatron 2U Active CPU Cooler Affiliate link
The Dynatron B13 is a 2U active CPU cooler designed for server environments. It features a compact footprint with dimensions of 4.25 inches in length, 3.15 inches in width, and 2.6 inches in height. This active cooling solution relies on forced air to manage heat, making it suitable for systems requiring standardized 2U rack space. You should consider this unit if you need a reliable, space-efficient cooling option for compatible AMD EPYC or Threadripper processors in a constrained chassis.
Pros
- Designed for 2U server height requirements
- Active cooling method ensures consistent heat dissipation
- Compact dimensions of 4.25 x 3.15 x 2.6 inches fit tight spaces
Cons
- Active cooling requires a fan, which adds noise compared to passive options
- Limited specification details regarding fan speed and airflow volume
- No mention of vapor chamber or heatpipe technology in the provided data
Good fit if
- You need a cooler that fits strictly within 2U rack dimensions
- You require active air cooling for a high-TDP server CPU
- You have a chassis with limited depth but adequate width for a 4.25-inch cooler
Skip if
- You are building a silent workstation and need passive cooling
- You require a cooler taller than 2U for better thermal headroom
- You need detailed fan performance metrics like RPM or CFM in the product description
Verdict: The Dynatron B13 2U Active CPU Cooler is a practical choice for server builds constrained to 2U height. It offers a compact active cooling solution for compatible processors, provided you can accommodate the necessary fan noise and airflow requirements.
Dynatron 2U Active CPU Cooler
Best for: Compact 2U AMD EPYC cooling
- Material
- Aluminum Heatsink with Heatpipe
- Server Height
- 2U
- Cooling Method
- Active
- Fan Size
- 60mm
- Dimensions
- 4.25 × 3.15 × 2.6 inches
- Weight
- 1 pounds
View on Amazon: Dynatron 2U Active CPU Cooler Affiliate link
The Dynatron B13 is a 2U active CPU cooler designed for AMD EPYC and Threadripper systems. It features an aluminum heatsink with embedded heatpipes and a 60mm fan. The unit weighs 1 pound and measures 3.15 by 4.25 inches. It comes with Shin-Etsu 7762 thermal paste pre-applied. This cooler suits you if you need a compact, reliable cooling solution for high-performance server hardware.
Pros
- Aluminum heatsink with embedded heatpipes
- Includes 60mm fan
- Pre-applied Shin-Etsu 7762 thermal paste
- 2U server height
Cons
- Small 60mm fan may limit airflow
- Lightweight 1-pound build
- No mention of PWM fan control
Good fit if
- You need a 2U active cooler
- You use AMD EPYC or Threadripper
- You want pre-applied thermal paste
Skip if
- You require a larger 80mm or 120mm fan
- You need a passive cooling solution
- You prefer copper heatsinks over aluminum
Verdict: Dynatron B13 2U Active CPU Cooler offers a compact 2U design with embedded heatpipes. It fits you if you need a small, active cooler for AMD EPYC systems.
Dynatron Threadripper and EPYC CPU Cooler
Best for: high-TDP AMD EPYC and Threadripper builds
- Socket Compatibility
- sTRX4, TR4, SP3
- Material
- Aluminum
- Cooling Method
- Fan
- Compatible Device
- Threadripper and EPYC Processors
- Dimensions
- 4.7" x 3.2" x 4.3"
- Weight
- 1.65 pounds
View on Amazon: Dynatron Threadripper and EPYC CPU Cooler Affiliate link
This MITXPC A39 cooler supports AMD EPYC and Threadripper processors on sTRX4, TR4, and SP3 sockets. It uses an aluminum heatsink with embedded heatpipes to handle up to 280W TDP. The unit includes a fan and comes with pre-applied Shin-Etsu 7762 thermal grease. Its compact dimensions of 4.7 x 3.2 x 4.3 inches fit well in constrained server or workstation builds. You get a reliable cooling solution for high-performance CPUs.
Pros
- Supports 280W TDP for high-end processors
- Compatible with sTRX4, TR4, and SP3 sockets
- Aluminum heatsink with embedded heatpipes
- Pre-applied Shin-Etsu 7762 thermal grease included
Cons
- Aluminum construction may offer less thermal mass than copper
- 1.65 pounds weight adds load to the socket
- Single fan configuration limits airflow options
Good fit if
- You need a cooler for SP3 or sTRX4 sockets
- Your CPU TDP reaches up to 280W
- You prefer pre-applied thermal paste for easy installation
Skip if
- You require a copper heatsink for maximum heat dissipation
- You need a passive cooling solution without a fan
- Your case cannot support a 4.3 inch height
Verdict: The MITXPC A39 280W TDP SP3 Cooler delivers solid performance for AMD EPYC and Threadripper systems. It fits users who need reliable cooling for high-TDP CPUs in standard server or workstation builds.
Dynatron 2U SP3 Heatpipe Cooler
Best for: 2U AMD EPYC workstations
- Socket Compatibility
- Socket SP3
- Material
- Aluminum
- Server Height
- 2U
- Dimensions
- 6 × 6 × 4 inches
- Weight
- 2 pounds
View on Amazon: Dynatron 2U SP3 Heatpipe Cooler Affiliate link
This Dynatron T17 is a 2U active aluminum heatsink designed for AMD EPYC and Threadripper processors on Socket SP3. It includes a 4-pin PWM fan and supports TDPs up to 280 Watts. The unit measures 6 by 4 by 6 inches and weighs 2 pounds. It is recommended for 2U server builds and larger chassis where active cooling is required for high-power workstation CPUs.
Pros
- Supports up to 280 Watts TDP
- Includes 4-pin PWM controlled fan
- Active cooling with aluminum heatsink and heatpipe
- Compatible with Socket SP3
Cons
- Limited to Socket SP3 compatibility
- Requires 2U server chassis or larger
- Aluminum construction may have lower thermal capacity than copper or vapor chamber options
Good fit if
- You need active cooling for an AMD EPYC or Threadripper system
- You are building a 2U server or larger workstation
- You require support for high TDP processors up to 280 Watts
Skip if
- You are using a Socket TR4 or sTRX4 motherboard
- You need a passive cooling solution
- You are building a compact 1U server chassis
Verdict: Dynatron T17 SP3 Aluminum CPU Heatsink is a solid active cooling option for 2U AMD EPYC builds. It fits users who need reliable airflow for high TDP SP3 processors in standard server form factors.
Sunydog LGA 2011 2U Active CPU Cooler
Best for: LGA 2011 server builds
- Socket Compatibility
- LGA2011
- Server Height
- 2U
- Cooling Method
- Active
- Fan Size
- 8400 RPM
View on Amazon: Sunydog LGA 2011 2U Active CPU Cooler Affiliate link
This Sunydog heatsink is a 2U active cooling solution designed for LGA 2011 processors. It features a fan spinning at 8400 RPM to ensure fast heat dissipation. The unit supports E5-2600 series, v2, and v3 processors. It includes all necessary tools for DIY installation. This compact cooler fits well in server setups requiring stable performance for specific Intel sockets.
Pros
- Active cooling with 8400 RPM fan speed
- Compatible with LGA 2011 sockets
- Supports E5-2600 series processors
- Includes installation tools
Cons
- Limited to LGA 2011 socket compatibility
- No mention of specific thermal design power (TDP) rating
- Generic model identification without specific series name
Good fit if
- You need a 2U active cooler for LGA 2011
- You use E5-2600 series processors
- You prefer DIY installation with included tools
Skip if
- You have an AMD Threadripper socket
- You require a passive cooling solution
- You need compatibility with modern LGA 1700 sockets
Verdict: Sunydog 2U Active LGA 2011 Cooler provides reliable active cooling for LGA 2011 systems. It is a practical option for users building or upgrading servers with E5-2600 series CPUs who need a compact 2U form factor.
Specifications side by side
| Spec | Dynatron 2U Active Aluminum SP3 Heatsink | MITXPC Threadripper EPYC Passive 2U Heatsink | Dynatron 2U Active CPU Cooler | Dynatron 2U Active CPU Cooler | Dynatron Threadripper and EPYC CPU Cooler | Dynatron 2U SP3 Heatpipe Cooler | Sunydog LGA 2011 2U Active CPU Cooler |
|---|---|---|---|---|---|---|---|
| Socket Compatibility | Socket SP3 | sTRX4, TR4, SP3 | not stated | not stated | sTRX4, TR4, SP3 | Socket SP3 | LGA2011 |
| Material | Aluminum | Aluminum, Heatpipes | not stated | Aluminum Heatsink with Heatpipe | Aluminum | Aluminum | not stated |
| Server Height | 2U | 2U | 2U | 2U | not stated | 2U | 2U |
| Cooling Method | Active | Passive | Active | Active | Fan | not stated | Active |
| Compatible Device | AMD EPYC | not stated | not stated | not stated | Threadripper and EPYC Processors | not stated | not stated |
| Fan Size | not stated | not stated | not stated | 60mm | not stated | not stated | 8400 RPM |
| Dimensions | not stated | 4.45" x 3.15" x 2.52" | 3.15 x 2.6 x 4.25 inches | not stated | 4.7" x 3.2" x 4.3" | not stated | not stated |
| System Type | not stated | Server | not stated | not stated | not stated | not stated | not stated |
| Features | not stated | not stated | not stated | not stated | Fan | not stated | not stated |
| Weight | 1 pounds | not stated | not stated | 1 pounds | 1.65 pounds | 2 pounds | not stated |
| Model | A26 | not stated | B13 | B13 | A39 | T17 | Sunydog3elo2w9gdj |
| Color | not stated | not stated | Multicolor | not stated | not stated | not stated | not stated |
Another guide worth a look: liijii aluminum mig welder alternatives.
Frequently asked questions
Can I use a passive heatsink instead of the Dynatron A26?
Yes, you can switch to a passive design like the MITXPC Threadripper EPYC Passive 2U Heatsink. This option eliminates fan noise entirely by relying on case airflow. It measures 3.15 by 2.52 by 4.45 inches. This makes it suitable for silent server builds where robust ventilation is available.
What is the smallest 2U active cooler available?
The Dynatron B13 offers a compact 2U active solution. It measures 3.15 by 2.6 by 4.25 inches. This model fits well in chassis with tight space constraints. It provides active cooling for AMD EPYC systems while maintaining a small footprint compared to larger aluminum blocks.
Which alternative supports high TDP processors?
The MITXPC A39 is rated for 280W TDP. It features an integrated fan for reliable performance. The cooler measures 3.2 by 4.3 by 4.7 inches. This makes it a strong choice for high-performance AMD EPYC and Threadripper builds that require sustained thermal management.
Is there a larger aluminum heatsink for SP3?
The Dynatron T17 provides a substantial aluminum block for SP3 sockets. It measures 6 by 4 by 6 inches and weighs 2 pounds. This larger surface area helps manage heat for high TDP processors in standard server form factors. It remains an active cooling solution.
Can I use these coolers on LGA 2011 sockets?
Most listed alternatives are designed for SP3 sockets. However, the Sunydog LGA 2011 2U Active CPU Cooler is built for Intel LGA 2011 systems. It provides active cooling for E5-2600 series CPUs. You must verify socket compatibility before purchasing, as SP3 and LGA 2011 are not interchangeable.
Do all alternatives include fans?
No, not all options include fans. The MITXPC Threadripper EPYC Passive 2U Heatsink is passive and requires case airflow. Other models, like the Dynatron A26 and B13, are active and rely on fans. The MITXPC A39 also includes a fan. Check the cooling method in the specs.