Dynatron Corporation Dynatron 1U AMD SP3 Alternatives: 6 Similar Picks Compared

How each alternative compares

Dynatron 1U Copper Vapor Chamber Server Heatsink

The Dynatron A28 uses a copper vapor chamber for passive cooling in a 1U form factor. Unlike the L29 liquid cooler, it has no pump or fans, which removes moving parts and potential leak risks. It is slightly wider at 3.2 inches but much shorter at 1 inch. You give up active airflow, relying on case fans for heat removal. This option suits users who prioritize silence and simplicity over the L29's higher 280-watt dissipation capacity. It is a solid passive solution for 1U AMD EPYC builds where space is tight and noise is a concern.

Dynatron 1U Passive Copper Heatsink

The Dynatron A25 is a passive copper heatsink designed for silent operation in 1U servers. It shares the 1U height constraint with the L29 but eliminates the liquid cooling loop entirely. At 4.4 inches long and 1 inch high, it is more compact than the L29's 10-inch length. You trade the L29's active cooling and high heat dissipation for complete silence. This alternative is best for users who have excellent chassis airflow and need to eliminate fan noise. It fits AMD EPYC SP3 systems where thermal headroom is available and quiet operation is the primary goal.

MITXPC Threadripper EPYC Passive 2U Heatsink

The MITXPC A34 is a passive 2U heatsink for AMD SP3 and Threadripper builds. It differs from the L29 by offering a 2U height instead of 1U, providing more room for passive heat dissipation. It lacks active fans, relying on chassis airflow like the other passive options. The dimensions are 4.45 inches long and 2.52 inches high. You give up the compact 1U profile and the high-performance liquid cooling of the L29. This pick is ideal for users who prioritize silence and have a 2U chassis, making it a budget-friendly alternative for Threadripper or EPYC systems that do not require active cooling.

Dynatron 2U Active Aluminum SP3 Heatsink

The Dynatron A26 is an active aluminum heatsink for 2U AMD EPYC SP3 systems. It uses a fan for active cooling, similar to the L29's need for airflow, but relies on air conduction rather than liquid. It is taller at 6 inches but narrower at 4.5 inches. The aluminum material is lighter than the L29's components but may have lower thermal conductivity than copper. You give up the 1U form factor and the high heat dissipation of the liquid cooler. This option suits users who need a lightweight, active cooling solution in a 2U chassis and prefer aluminum construction for cost or weight reasons.

Dynatron 1U Copper Vapor Chamber Server Heatsink

The Dynatron B4A is a 1U copper vapor chamber heatsink designed for Intel server builds. It shares the 1U height constraint with the L29 but uses a passive copper vapor chamber for cooling. It is shorter at 4.2 inches and narrower at 3.1 inches. You give up the AMD SP3 socket compatibility and the active liquid cooling performance of the L29. This alternative is specific to Intel processors, making it irrelevant for AMD SP3 users. It fits Intel server builds where space is tight and dense copper heat dissipation is needed in a small footprint without the complexity of a liquid loop.

SilverStone 1U Passive Copper Server Heatsink

The SilverStone SST-XE01-2011 is a 1U passive copper heatsink for Intel LGA 2011 and LGA 2066 sockets. It matches the L29's 1U height but is designed for Intel processors, not AMD SP3. It is slightly wider at 3.54 inches and taller at 1.02 inches. You give up AMD compatibility and active cooling for a passive Intel-specific solution. This pick is best for Intel LGA 2011/2066 builds that require silence and have adequate chassis airflow. It is not a direct alternative for AMD SP3 users but serves a similar role in Intel server environments where compact, passive cooling is required.

Quick picks

Our 7 picks

1 Best overall

Dynatron 1U AMD SP3 Liquid Cooler

Best for: AMD EPYC 1U server cooling

Socket Compatibility

sWRX8, sTRX4, TR4, SP3

Server Height

1U

System Type

Server

Dimensions

10 × 2.5 × 12 inches

View on Amazon: Dynatron 1U AMD SP3 Liquid Cooler Affiliate link

The Dynatron L29 is an all-in-one liquid cooler designed for 1U server chassis. It supports AMD sWRX8, sTRX4, TR4, and SP3 sockets. The unit handles up to 280 watts of heat dissipation. It measures 10 inches long, 2.5 inches wide, and 12 inches high. Shin-Etsu 7762 thermal compound is pre-applied. This cooler suits users needing high-performance cooling in tight server spaces.

Pros

• All-in-one liquid cooling design
• Supports AMD SP3, TR4, sTRX4, and sWRX8 sockets
• Handles up to 280 watts of heat dissipation
• Pre-applied Shin-Etsu 7762 thermal compound

Cons

• 12-inch height may not fit all 1U chassis
• Only supports AMD server sockets, not Intel
• Black color only

Good fit if

• You need a liquid cooler for AMD SP3 or sWRX8 servers
• You have a 1U chassis with at least 12 inches of clearance
• You require cooling for up to 280 watts of TDP

Skip if

• You use Intel Xeon processors
• Your server chassis has less than 12 inches of vertical clearance
• You prefer air cooling solutions

Verdict: Dynatron L29 1U Liquid Cooler is a specialized liquid cooling solution for AMD EPYC processors in 1U servers. It fits users who need high heat dissipation in a compact form factor.

2 Also great

Dynatron 1U Copper Vapor Chamber Server Heatsink

Best for: 1U AMD EPYC server builds

Socket Compatibility

SP3

Material

Copper 1100 with Skiving Fin

Server Height

1U

Compatible Device

AMD EPYC

Dimensions

120 x 82 x 27 mm

System Type

Server

View on Amazon: Dynatron 1U Copper Vapor Chamber Server Heatsink Affiliate link

The Dynatron A28 is a 1U passive cooler for AMD SP3 sockets. It uses a copper 1100 base with skived fins and a vapor chamber. The unit measures 120 x 82 x 27 mm. It weighs 1.01 pounds. This design fits 1U server chassis. It suits users needing reliable heat dissipation for EPYC processors without active fans.

Pros

• Copper 1100 material with skived fins
• Vapor chamber base for efficient heat transfer
• Compact 27 mm height for 1U servers
• Compatible with AMD SP3 socket

Cons

• Passive design requires case airflow
• Limited to 1U server form factors
• No active fan included for boosting cooling

Good fit if

• You need a passive cooler for AMD SP3
• You are building a 1U server chassis
• You want copper heat dissipation with a vapor chamber

Skip if

• You need active fan cooling
• You are using a standard desktop ATX case
• You require compatibility with consumer Intel or AMD sockets

Verdict: The Dynatron A28 1U SP3 Copper Cooler is a solid passive solution for 1U AMD EPYC servers. It fits users who prioritize compact height and copper vapor chamber efficiency over active fan noise.

3 Best premium

Dynatron 1U Passive Copper Heatsink

Best for: silent AMD EPYC SP3 server builds

Socket Compatibility

SP3

Material

Copper 1100

Server Height

1U

Cooling Method

Passive

Compatible Device

AMD EPYC

Dimensions

4.4 × 3 × 1 inches

View on Amazon: Dynatron 1U Passive Copper Heatsink Affiliate link

This is a Dynatron A25 passive cooler built for AMD EPYC SP3 sockets. It uses a 1U form factor with skived copper fins and pre-printed Shin-Etsu 7762 thermal grease. The unit measures 3 by 4.4 inches and weighs 1.3 pounds. You need active airflow from server fans to move heat away from the processor. It suits rack-mounted systems where space is tight and noise is managed by chassis fans.

Pros

• Passive cooling design requires no fan noise from the cooler itself
• Copper 1100 material with skived fin construction for efficient heat transfer
• Shin-Etsu 7762 thermal grease is pre-printed for easy installation
• Compact 1U height fits standard server racks

Cons

• Passive design relies entirely on external airflow
• No fan included in the package
• Copper construction adds weight compared to aluminum alternatives

Good fit if

• You need a silent cooling solution for an AMD EPYC SP3 server
• You have existing chassis fans to provide necessary airflow
• You require a compact 1U profile for tight server cases

Skip if

• You need a cooler that includes its own fans
• You are building a desktop PC rather than a server
• You want a liquid cooling solution for extreme overclocking

Verdict: The Dynatron A25 1U Copper Passive Cooler is a specialized component for AMD EPYC SP3 systems. It fits users who need silent operation and have adequate case airflow to handle the passive heat dissipation.

4 Also great

MITXPC Threadripper EPYC Passive 2U Heatsink

Best for: Silent AMD EPYC and Threadripper builds

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 features an aluminum base and stacked fins with heatpipes to dissipate up to 180 watts of heat. The unit includes pre-applied Shin-Etsu 7762 thermal paste and measures 4.45 x 3.15 x 2.52 inches. It suits systems relying on case airflow for cooling rather than active fans.

Pros

• Supports AMD SP3, sTRX4, and TR4 sockets
• Passive design requires no fan power
• Pre-applied Shin-Etsu 7762 thermal paste
• Handles up to 180 watts heat dissipation

Cons

• Passive cooling relies entirely on case airflow
• No active fan for high-load scenarios
• Limited to 180 watts thermal capacity

Good fit if

• You need a silent cooling solution for EPYC or Threadripper
• Your server case provides strong front-to-back airflow
• You are building a low-power workstation under 180 watts

Skip if

• You require active fan cooling for higher thermal loads
• Your case has restricted airflow paths
• You need support for Intel Xeon sockets

Verdict: The MITXPC Dynatron A34 Passive 2U Heatsink is a compact, fanless option for AMD SP3 and Threadripper builds that prioritize silence and rely on chassis airflow for thermal management.

5 Best active

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 cooling solution designed for AMD EPYC processors using the Socket SP3. It features an aluminum heatsink with embedded heat pipes to manage thermal output. The unit measures 4.5 by 5 by 6 inches and weighs 1 pound. This compact design fits standard server racks while providing necessary airflow for high-performance computing tasks.

Pros

• Active cooling with embedded heat pipes
• Aluminum heatsink construction
• Compatible with AMD EPYC Socket SP3
• Compact 2U form factor

Cons

• Aluminum material may offer lower thermal conductivity than copper
• Requires external fan installation for active cooling
• Limited to 2U chassis height constraints

Good fit if

• You need a 2U active cooler for AMD EPYC SP3 systems
• You prefer aluminum heatsinks for lighter weight
• You have standard server rack space available

Skip if

• You require a passive cooling solution
• You need a copper heatsink for maximum heat dissipation
• You are using a 1U server chassis

Verdict: Dynatron A26 2U Active Aluminum SP3 Cooler provides reliable active cooling for AMD EPYC SP3 systems in a 2U chassis. It suits users needing a lightweight aluminum heatsink solution.

6 Also great

Dynatron 1U Copper Vapor Chamber Server Heatsink

Best for: Intel server builds in 1U chassis

Socket Compatibility

FCLGA 3647 Narrow ILM

Material

Copper with vapor chamber base

Server Height

1U

Dimensions

108.0 x 81.0 x 27.0 mm

System Type

Server

Weight

1.06 pounds

View on Amazon: Dynatron 1U Copper Vapor Chamber Server Heatsink Affiliate link

The Dynatron B4A is a 1U server CPU cooler designed for Intel sockets like FCLGA 3647. It uses a copper vapor chamber base with stacked copper fins to manage heat in tight spaces. The unit measures 108.0 x 81.0 x 27.0 mm and weighs 1.06 pounds. It suits server builds requiring passive or active cooling in a 1U chassis.

Pros

• Vapor chamber base for efficient heat transfer
• Copper stacked fin design
• Compact 1U height of 27.0 mm
• Compatible with FCLGA 3647 Narrow ILM sockets

Cons

• Limited to Intel sockets, not AMD
• Heavy at 1.06 pounds
• Passive design requires case airflow

Good fit if

• You need a 1U cooler for Intel server CPUs
• You use a chassis with strong airflow
• You require copper heat dissipation

Skip if

• You use AMD EPYC or TRX40 sockets
• You need active fan integration
• You require a low-profile under 25 mm

Verdict: The Dynatron B4A 1U Vapor Chamber Cooler delivers dense copper heat dissipation in a small footprint. It fits Intel server builds where space is tight and airflow is managed.

7 Best budget

SilverStone 1U Passive Copper Server Heatsink

Best for: Intel LGA 2011/2066 1U passive cooling

Socket Compatibility

LGA2011/2066

Material

Copper skived-fin and copper base

Server Height

1U

Cooling Method

Passive

System Type

Server

Dimensions

3.54 × 3.54 × 1.02 inches

View on Amazon: SilverStone 1U Passive Copper Server Heatsink Affiliate link

This SilverStone cooler is a passive 1U solution built for Intel LGA 2011 and LGA 2066 sockets. It uses copper skived fins and a copper base for heat dissipation. The unit stands 26mm tall and weighs 1.08 pounds. It fits strictly in 1U rackmount servers. You need external airflow to use it effectively.

Pros

• Copper skived-fin construction
• Copper base material
• Compatible with LGA 2011 and LGA 2066
• Fits 1U rackmount servers

Cons

• Passive cooling requires external fans
• Limited to Intel sockets only
• No included fan assembly

Good fit if

• You need a 1U passive cooler
• You use an Intel LGA 2011 or LGA 2066 socket
• You have server chassis airflow

Skip if

• You use AMD sockets
• You need active cooling without external fans
• You require a 2U or taller cooler

Verdict: SilverStone 1U Copper Passive Cooler is a compact heat sink for Intel LGA 2011 and LGA 2066 systems. It suits server builds that provide their own airflow.

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