Dynatron 1U Active Copper Heatsink vs Dynatron 1U Active AM4 Copper (2026): Key Differences
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You are looking at the dynatron copper heatsink k199 intel vs a18 1u active pwm. Both are 1U active copper coolers designed for server environments. They share a compact form factor and copper construction. The main difference lies in their target sockets. The K199 supports Intel LGA1155 and LGA1156. The A18 is built for AMD Socket AM4. Choose the one that matches your motherboard socket type.
Key differences
| Aspect | Dynatron 1U Active Copper Heatsink | Dynatron 1U Active AM4 Copper Heatsink |
|---|---|---|
| Socket Compatibility | LGA1155, LGA1156 | AMD Socket AM4 |
| Model Number | K199 | A18 |
| Dimensions | 5 x 5 x 2.5 inches | 5 x 3 x 1 inches |
| Weight | 15.2 ounces | 1.1 pounds |
| Fan Type | Fan | PWM Blower |
Which one should you choose?
Choose Dynatron 1U Active Copper Heatsink if
- You have an Intel LGA1155 or LGA1156 motherboard.
- You need a wider heatsink base at 5 inches.
- You prefer a lighter unit at 15.2 ounces.
Choose Dynatron 1U Active AM4 Copper Heatsink if
- You have an AMD Socket AM4 motherboard.
- You need a shorter 1-inch profile for tight cases.
- You require PWM fan control for variable speeds.
Verdict: Pick the K199 if your system uses Intel LGA1155 or LGA1156 sockets. Choose the A18 if you are installing an AMD AM4 processor. The A18 also offers a lower profile and PWM control.
K199 vs A18: Spec Comparison
Socket Compatibility
The Dynatron K199 targets Intel platforms, supporting LGA1155 and LGA1156 sockets. This makes it suitable for older Sandy Bridge Xeon and Core i3/i5/i7 processors. The Dynatron A18 is designed for AMD, specifically supporting the AM4 socket. You must choose the model that matches your CPU socket. They are not cross-compatible. If you have an Intel server board from the 115x era, you need the K199. For an AM4-based system, the A18 is the correct choice. This is the primary decision factor for buyers.
Physical Dimensions
Size matters in 1U chassis. The K199 measures 5 inches wide, 5 inches long, and 2.5 inches high. The A18 is smaller, measuring 3 inches wide, 5 inches long, and only 1 inch high. The A18 offers a significantly lower profile. This reduced height of 1 inch allows it to fit into tighter server racks or cases with limited vertical clearance. The K199 is taller, which may restrict airflow or fit in very constrained spaces. You should measure your case clearance carefully before purchasing either unit.
Weight
The Dynatron K199 weighs 15.2 ounces. The Dynatron A18 weighs 1.1 pounds, which converts to approximately 17.6 ounces. The A18 is slightly heavier by about 2.4 ounces. This difference is minimal and unlikely to affect mounting stability in a standard server chassis. Both units use copper construction, which adds density. The weight difference does not suggest a significant variation in thermal mass or build quality based on these specs alone. You can treat them as having comparable heft for rack mounting.
Cooling Method
Both coolers use an active cooling method, meaning they require a fan to operate. The K199 includes a fan as part of its active solution. The A18 is described as a PWM blower. PWM allows for variable fan speed control based on CPU temperature, which can reduce noise and improve efficiency. The K199 spec sheet mentions a fan but does not explicitly state PWM control. If your motherboard supports PWM, the A18 offers more granular control. Otherwise, both provide necessary active airflow for their respective sockets.
Material Construction
Both products feature copper construction for the heatsink base and fins. Copper provides excellent thermal conductivity, helping to transfer heat away from the CPU efficiently. The K199 is listed as a copper heatsink. The A18 features copper fins. This shared material choice ensures both units rely on the same fundamental thermal properties. There is no aluminum or hybrid construction mentioned in the data for either model. You get pure copper thermal transfer capabilities from both the Intel-targeted and AMD-targeted versions.
Choose your Dynatron heatsink
Intel Xeon or Core i user
Select this model if your server uses Intel LGA1155 or LGA1156 sockets. It is the only option compatible with Sandy Bridge Xeons and older Core processors. The copper construction and active fan cooling fit standard 1U rack spaces, ensuring reliable thermal performance for legacy Intel hardware in your data center.
AMD AM4 platform builder
Choose this unit for AMD AM4 sockets. It features PWM fan control for precise speed management and uses copper fins for efficient heat dissipation. The compact 1U design fits low-profile server cases. It is the necessary choice for maintaining stable temperatures on modern AMD processors in tight server environments.
Low-profile 1U server admin
This cooler offers a slimmer profile at 1 inch in height compared to the 2.5-inch K199. If your chassis has strict height limitations, the A18 provides the necessary clearance. Its PWM blower design directs airflow efficiently within confined server racks, making it ideal for high-density deployments requiring minimal vertical space.
The products compared
Dynatron 1U Active Copper Heatsink
Best for: Legacy Intel LGA1155/1156 1U server builds
- Socket Compatibility
- LGA1155, LGA1156
- Material
- Copper
- Server Height
- 1U
- Cooling Method
- Active
- Dimensions
- 5 x 5 x 2.5 inches
- Features
- Fan
View on Amazon: Dynatron 1U Active Copper Heatsink Affiliate link
This is a 1U active copper heatsink designed for Intel LGA1155 and LGA1156 sockets. It measures 5 by 5 by 2.5 inches and weighs 15.2 ounces. The unit includes a fan for active cooling. It suits you if you need a low-profile solution for specific older Intel server or workstation processors. The copper construction provides direct heat transfer for these socket types.
Pros
- Copper heatsink material for efficient heat dissipation
- Compatible with LGA1155 and LGA1156 sockets
- 1U low-profile height for compact server builds
- Active cooling with included fan
Cons
- Limited to Intel LGA1155 and LGA1156 sockets only
- Does not support modern AMD AM4 sockets
- Fixed 1U height limits use in standard desktop cases
Good fit if
- You are building a server with LGA1155 or LGA1156 processors
- You need a 1U form factor for a rackmount chassis
- You require a copper heatsink for specific Intel Xeon or Core i7 CPUs
Skip if
- You use an AMD AM4 socket
- You need a cooler for modern Intel LGA1700 or LGA1200 sockets
- You are installing a standard desktop tower case with height restrictions above 1U
Verdict: Dynatron K199 1U Copper Heatsink fits you if you are maintaining legacy Intel LGA1155 or LGA1156 systems in a 1U server chassis. It does not work for modern desktop builds or AMD platforms.
Dynatron 1U Active AM4 Copper Heatsink
Best for: AMD AM4 1U server builds
- Socket Compatibility
- AMD Socket AM4
- Material
- Copper
- Server Height
- 1U
- Cooling Method
- Active
- Dimensions
- 5 x 3 x 1 inches
- Weight
- 1.1 pounds
View on Amazon: Dynatron 1U Active AM4 Copper Heatsink Affiliate link
This is a 1U active heatsink built with copper fins for AMD Socket AM4. It measures 5 x 3 x 1 inches and weighs 1.1 pounds. The design uses a blower-style fan to direct airflow over the copper surface. This compact form factor suits small server cases or tight workstations where height is restricted. It provides active cooling for compatible AMD processors.
Pros
- Copper fin material for efficient heat transfer
- 1U server height fits low-profile cases
- Active PWM blower design for directed airflow
- Specific compatibility with AMD Socket AM4
Cons
- Blower style may not suit all case airflow layouts
- Single socket AM4 support limits future upgrades
- Copper construction adds weight compared to aluminum
Good fit if
- You need a 1U solution for AMD AM4
- You have a small form factor server case
- You require active cooling for a dense build
Skip if
- You use Intel LGA1155 or LGA1156 sockets
- You need passive cooling without a fan
- You require compatibility with multiple socket types
Verdict: Dynatron A18 1U Active AM4 Copper fits AMD AM4 builds in 1U cases. It offers copper cooling for small server setups. Skip it if you need Intel support.
Specifications side by side
| Spec | Dynatron 1U Active Copper Heatsink | Dynatron 1U Active AM4 Copper Heatsink |
|---|---|---|
| Socket Compatibility | LGA1155, LGA1156 | AMD Socket AM4 |
| Material | Copper | Copper |
| Server Height | 1U | 1U |
| Cooling Method | Active | Active |
| Dimensions | 5 x 5 x 2.5 inches | 5 x 3 x 1 inches |
| Features | Fan | not stated |
| Weight | 15.2 ounces | 1.1 pounds |
| Model | K199 | A18 |
Frequently asked questions
Can the Dynatron K199 fit in a standard desktop case?
No. The K199 measures 5 by 5 by 2.5 inches. This height exceeds the 1U chassis limit of 0.69 inches. It is designed for low-profile server racks, not typical desktop towers. You need a specialized 1U case to house this cooler without clearance issues.
Does the A18 support LGA 1156 sockets?
No. The A18 is built exclusively for AMD AM4 sockets. It will not mount to Intel LGA 1155 or LGA 1156 platforms. You must use the K199 for those older Intel processors. Mixing up these models will result in an incompatible installation.
What is the weight difference between the K199 and A18?
The K199 weighs 15.2 ounces, while the A18 weighs 1.1 pounds. The A18 is significantly heavier due to its copper construction and mounting design. This weight difference may affect how you secure the cooler in tight server spaces or handle the unit during installation.
Is the A18 suitable for modern Intel builds?
No. The A18 supports only the AMD AM4 socket. It is not compatible with any Intel LGA sockets, including newer LGA 1200 or LGA 1700. You need the K199 for legacy Intel systems or a different cooler for modern Intel platforms.
Do both heatsinks include fans?
Yes. Both the K199 and A18 are active coolers, meaning they include fans. The K199 attributes list a fan as a standard feature. The A18 is described as an active copper heatsink. You do not need to purchase a separate fan for either model.
Can I use the K199 for an AMD Ryzen build?
No. The K199 is compatible only with Intel LGA 1155 and LGA 1156 sockets. It does not support AMD AM4 or any other AMD socket types. For Ryzen processors, you must select the A18 or another AMD-compatible cooler.
What material are both Dynatron heatsinks made of?
Both units are constructed from copper. The K199 uses copper for its heat dissipation base and fins. The A18 also features copper construction. Copper provides efficient heat transfer, which is critical for the compact 1U form factor used in these server-grade coolers.