Noctua vs MITXPC: CPU Coolers Compared by Specs
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You are comparing the Noctua NA-FD1 and the MITXPC Dynatron A38. This noctua vs MITXPC CPU cooler analysis highlights two distinct tools for small form factor builds. Both include fans to assist thermal management. The main difference lies in their function. Noctua offers a duct kit for existing coolers. MITXPC provides a complete aluminum heatsink unit. You need to decide between an accessory and a primary cooler.
Key differences
| Aspect | Noctua SFF Foam CPU Cooler Fan Duct Kit | Dynatron Aluminum Side-Fan CPU Cooler |
|---|---|---|
| Product Type | Fan Duct Kit | Aluminum Heatsink with Fan |
| Socket Compatibility | NH-L9i, NH-L9a series | sTRX4, TR4, SP3 |
| TDP Rating | Not listed | 280W |
| Material | EVA foam | Aluminum |
| Thermal Grease | Not listed | Pre-applied Shin-Etsu 7762 |
Which one should you choose?
Choose Noctua SFF Foam CPU Cooler Fan Duct Kit if
- You already have a compatible Noctua low-profile cooler
- You want to improve airflow in a perforated SFF case
- You need modular spacers to bridge gaps between fans and panels
Choose Dynatron Aluminum Side-Fan CPU Cooler if
- You need a complete cooling solution for Threadripper or EPYC
- You require support for high TDP processors up to 280W
- You want a pre-applied thermal paste ready aluminum heatsink
Verdict: The Noctua NA-FD1 is a specialized accessory for users who already own compatible low-profile coolers. The MITXPC Dynatron A38 is a complete cooler designed for high-power workstation processors. Choose based on whether you need an airflow aid or a primary heatsink.
Specs: Duct Kit vs Full Cooler
primary function
The Noctua NA-FD1 is a fan duct kit. It bridges the gap between a fan and perforated case panels. This setup allows coolers like the NH-L9i to draw fresh air from outside. It improves performance by up to 5°C. The MITXPC Dynatron A38 is a complete aluminum side-fan CPU cooler. It includes the heatsink, heatpipes, and fan in one unit. It supports high-TDP processors directly. You use the Noctua part to enhance an existing cooler. You use the MITXPC part as the entire cooling solution.
socket compatibility
Socket support differs significantly between these two items. The Noctua NA-FD1 duct works with specific Noctua low-profile coolers. These include the NH-L9i, NH-L9a, and their AM5 or AM4 variants. It does not connect directly to the CPU socket. The MITXPC Dynatron A38 supports AMD Threadripper and EPYC processors. It fits sTRX4, TR4, and SP3 sockets directly. It handles up to 280W TDP. If you have a workstation with a large socket, the MITXPC unit is the only option. The Noctua part is only an accessory.
dimensions
Size and footprint vary greatly. The Noctua NA-FD1 is small and modular. It measures 3.9 inches wide, 1.89 inches high, and 4.72 inches long. It weighs 1.9 ounces. The foam spacers adjust from 5 to 45mm. The MITXPC Dynatron A38 is a large tower. It measures 4 inches wide, 3 inches high, and 6 inches long. It is much bulkier. The Noctua kit is designed for tight SFF cases like the Dan A4-SFX. The MITXPC cooler requires more space for its aluminum heatsink and side fan.
material build
The construction materials serve different purposes. The Noctua NA-FD1 is made from EVA foam. This material helps seal gaps between the fan and case panels. It is lightweight and adjustable in 1mm increments. The MITXPC Dynatron A38 uses an aluminum heatsink. It includes heatpipes for heat transfer. The aluminum body provides thermal mass and surface area. The MITXPC unit also comes with pre-applied Shin-Etsu 7762 thermal grease. The Noctua kit has no thermal interface material because it is not a heatsink.
cooling performance
Performance claims differ in nature. The Noctua NA-FD1 promises up to 5°C improvement. This gain comes from better airflow intake in small cases. It relies on the underlying cooler for actual heat dissipation. The MITXPC Dynatron A38 is rated for 280W TDP. It is designed to cool high-power Threadripper and EPYC chips. It does not list a specific temperature delta. It relies on its aluminum fins and side fan. The Noctua part enhances a cooler. The MITXPC part provides the cooling power itself.
Which Noctua or MITXPC fits your build
Small form factor PC builder
You need a fan duct kit for SFF cases like the Dan A4-SFX. The Noctua NA-FD1 bridges the gap between your fan and case panels. It measures 3.9 by 1.89 by 4.72 inches. The EVA foam spacers adjust from 5 to 45mm. This allows your NH-L9i cooler to draw fresh air. You get up to 5 degrees better cooling performance.
Threadripper workstation user
You require a full CPU cooler for sTRX4, TR4, or SP3 sockets. The MITXPC Dynatron A38 supports up to 280W TDP. It features an aluminum heatsink with heatpipes and a side fan. The unit measures 4 by 3 by 6 inches. Pre-applied Shin-Etsu 7762 thermal grease is included. This setup handles high-power processors in server or workstation environments.
Compact system optimizer
You already own a low-profile cooler and want to improve airflow. The Noctua NA-FD1 is an accessory, not a cooler. It fits cases with perforated panels. The modular foam design ensures a tight seal. This reduces hot air recirculation. Your existing NH-L9a or NH-L9i will perform better. The kit is lightweight at 1.9 ounces and easy to install.
The products compared
Noctua SFF Foam CPU Cooler Fan Duct Kit
Best for: SFF cases with perforated front panels
- Features
- Fan
- Dimensions
- 4.72 × 3.9 × 1.89 inches
- Weight
- 1.9 ounces
View on Amazon: Noctua SFF Foam CPU Cooler Fan Duct Kit Affiliate link
This accessory bridges the gap between your fan and perforated case panels. It uses EVA foam spacers adjustable from 5 to 45mm to draw fresh air. This setup improves cooling performance by up to 5°C. It fits Noctua NH-L9i and NH-L9a series coolers. The kit weighs 1.9 ounces and includes a 6-year warranty. It is designed for small form factor cases like the Dan A4-SFX.
Pros
- Adjustable EVA foam spacers range from 5 to 45mm
- Improves cooling performance by up to 5°C
- Compatible with NH-L9i and NH-L9a cooler series
- Includes a 6-year manufacturer warranty
Cons
- Only works with specific Noctua low-profile coolers
- Does not cool without an existing fan installed
- Requires manual adjustment of foam spacers
Good fit if
- You use an SFF case with perforated panels
- You own a compatible Noctua NH-L9 series cooler
- You want to improve airflow in a tight space
Skip if
- You have a standard ATX mid-tower case
- You use a cooler not listed in the compatibility data
- You need a complete cooling solution without a fan
Verdict: Noctua NA-FD1 Fan Duct Kit for SFF helps you squeeze more performance from your low-profile cooler. It is the right choice if you run a Dan A4-SFX or Ghost S1 with a compatible Noctua fan.
Dynatron Aluminum Side-Fan CPU Cooler
Best for: Threadripper and EPYC workstations
- Socket Compatibility
- sTRX4, TR4, SP3
- TDP Rating
- 280W
- Material
- Aluminum
- Features
- Fan
- Dimensions
- 6 × 4 × 3 inches
View on Amazon: Dynatron Aluminum Side-Fan CPU Cooler Affiliate link
The MITXPC Dynatron A38 is an aluminum heatsink designed for Threadripper and EPYC processors. It supports sockets sTRX4, TR4, and SP3 with a 280W TDP rating. The unit includes a side-mounted fan and pre-applied Shin-Etsu 7762 thermal grease. Its dimensions are 4.69 by 3.11 by 2.56 inches. You should choose this cooler if you need a compact solution for high-performance workstation CPUs.
Pros
- Supports sTRX4, TR4, and SP3 sockets
- Rated for up to 280W TDP
- Includes pre-applied Shin-Etsu 7762 thermal grease
- Aluminum heatsink with side fan
Cons
- Aluminum heatsink has lower thermal conductivity than copper
- Side-mounted fan design limits airflow direction
- Does not list compatibility with consumer AM4 or LGA sockets
Good fit if
- You use Threadripper or EPYC processors
- You need a cooler rated for 280W TDP
- You have limited vertical clearance in your case
Skip if
- You use AM4 or LGA socket CPUs
- You require copper heatpipe construction
- You need top-down airflow for case fans
Verdict: The MITXPC Dynatron A38 Aluminum CPU Cooler is a specialized air cooler for Threadripper and EPYC builds. It fits users who need high TDP support in a small footprint but do not require consumer socket compatibility.
Specifications side by side
| Spec | Noctua SFF Foam CPU Cooler Fan Duct Kit | Dynatron Aluminum Side-Fan CPU Cooler |
|---|---|---|
| Socket Compatibility | not stated | sTRX4, TR4, SP3 |
| TDP Rating | not stated | 280W |
| Material | not stated | Aluminum |
| Features | Fan | Fan |
| Dimensions | 4.72 × 3.9 × 1.89 inches | 6 × 4 × 3 inches |
| Weight | 1.9 ounces | not stated |
| Size | One Size | not stated |
| Color | Black | not stated |
| Model | NA-FD1 | A38 |
Frequently asked questions
Is the Noctua NA-FD1 a standalone CPU cooler?
No. The Noctua NA-FD1 is a fan duct kit, not a complete cooler. It is designed to work with existing low-profile coolers. You use it to improve airflow in small form factor cases. It helps your current cooler perform better by directing air more efficiently.
What sockets does the MITXPC Dynatron A38 support?
The MITXPC Dynatron A38 supports the SP3 socket. It is built for Threadripper and EPYC workstations. It does not support standard consumer desktop sockets. You should verify your motherboard socket type before purchasing this specific air cooler for high TDP applications.
Can I use the Noctua NA-FD1 with any case?
It is best for SFF cases with perforated front panels. The duct kit bridges the gap between your fan and the case mesh. This setup is ideal for specific builds like the Dan A4-SFX or Ghost S1. It ensures your cooler draws fresh air from outside the chassis.
What material is the MITXPC Dynatron A38 made of?
The MITXPC Dynatron A38 is made of aluminum. This material choice suits its role as a specialized air cooler. It provides a compact footprint for high TDP processors. The aluminum construction helps dissipate heat effectively in workstation environments.
How heavy is the Noctua fan duct kit?
The Noctua NA-FD1 weighs 1.9 ounces. It is a lightweight accessory for small form factor builds. The compact size allows it to fit into tight spaces without adding significant weight. You can install it easily alongside your existing cooling components.
Does the MITXPC Dynatron include a fan?
Yes, the MITXPC Dynatron A38 includes a fan. It is listed as a complete cooler with fan features. This makes it ready for installation in compatible Threadripper or EPYC systems. You do not need to purchase a separate fan for this specific model.
What are the dimensions of the Noctua duct kit?
The Noctua NA-FD1 measures 3.9 inches in width, 1.89 inches in height, and 4.72 inches in length. These dimensions allow it to fit within small form factor cases. The size is optimized to direct airflow without interfering with other components.

