Easycargo 40mm Copper Heatsink 2-Pack Review: Specs, Pros and Cons
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This easycargo 40mm copper heatsink kit review focuses on a compact cooling solution for small electronics. You get two identical units, each measuring 40mm by 40mm with a height of just 4mm. The material is pure copper, which offers strong thermal conductivity for its size. Each heatsink comes with pre-applied thermal conductive adhesive tape, simplifying installation on flat surfaces. This kit is designed for devices that generate moderate heat but require minimal space. It is not a traditional CPU air cooler. Instead, it serves as a passive heat sink for specific components like stepper motors or thermoelectric coolers. The small footprint makes it ideal for tight enclosures where larger fans cannot fit.
What stands out
- Pure copper construction for efficient heat dissipation.
- Compact 40x40x4mm dimensions fit tight spaces.
- Pre-applied thermal adhesive tape for easy mounting.
- Pack includes two identical heatsinks for dual-component cooling.
Who it fits
Good fit for
This kit suits hobbyists building 3D printers or working with NEMA 17 stepper motors. It is also suitable for cooling TEC1-12706 Peltier coolers that need passive heat removal. If your project requires a small, reliable copper heatsink with adhesive backing, this product fits well. It is perfect for enclosures where drilling holes for screws is difficult or impossible. The dual-pack allows you to cool two separate components simultaneously. You should use this if your device generates heat that exceeds the capacity of the component housing alone.
Who should skip it
You should look elsewhere if you need a high-performance CPU air cooler for a desktop computer. This heatsink lacks a fan, so it relies entirely on passive cooling. It is not designed to handle the thermal output of modern processors. If you require active airflow to lower temperatures significantly, this kit will not suffice. Additionally, the adhesive mounting method is permanent. You should avoid this if you plan to remove the heatsink frequently. It is also unsuitable for components requiring screw-down mounting for better pressure contact.
Verdict: This is a specialized passive heatsink for small electronics, not a general-purpose CPU cooler. It works well for 3D printers and stepper motors in tight spaces.
Key specs explained for this heatsink
Material: copper
Copper conducts heat faster than aluminum. This allows the small 40mm block to absorb and spread thermal energy efficiently. You benefit from reliable heat transfer without needing large surface areas. When comparing to standard CPU air coolers, note that copper is denser and heavier, but offers superior conductivity for compact, low-profile applications where space is limited.
Dimensions: 40mm x 40mm x 4mm
These compact measurements define the physical footprint and height. The 4mm height is extremely low, allowing installation in tight spaces where standard tower coolers cannot fit. This size suits small electronics rather than high-power desktop CPUs. When shopping for CPU air coolers, you will find these are for auxiliary cooling, not primary processor cooling, due to the minimal surface area.
Mounting Type: preapplied adhesive tape
The unit comes with thermal conductive adhesive tape already attached. This simplifies installation by eliminating the need for separate screws or clips. You simply peel and stick the heatsink to the target component. This method is ideal for flat surfaces like 3D printer parts or TEC coolers. It differs significantly from the clip or screw mounts found on traditional CPU air cooler towers.
Compatible Device: 3D printers, NEMA 17, Peltier Cooler
This listing specifies usage for 3D printers, stepper motors, and thermoelectric coolers. These devices generate moderate heat that requires passive dissipation. This heatsink is not designed for high-TDP desktop CPUs. When comparing to CPU air coolers, recognize that this product targets niche electronic components. Ensure your cooling needs match these specific device categories before purchasing.
Design and build details
The listing describes this kit as containing two identical copper heatsinks. Each unit measures 40mm by 40mm with a height of 4mm. According to the listing, the material is pure copper. Copper conducts heat faster than aluminum, allowing these small blocks to absorb and spread thermal energy efficiently. You benefit from reliable heat transfer without needing large surface areas.
The weight is listed at 1.27 ounces for the pair. This light mass makes the units easy to handle during installation. The design includes preapplied thermal conductive adhesive tape. This mounting type means you do not need screws or clips. You simply peel the backing and press the heatsink onto the target component. This simplifies the process for tight spaces where standard brackets would not fit.
These dimensions and the adhesive mount suit specific devices like 3D printers, NEMA 17 steppers, or TEC1-12706 Peltier coolers. The compact 40mm square footprint allows placement on small chips or motors. The 4mm height ensures it clears nearby components. The copper construction provides durability and consistent thermal performance. You get two pieces, so you can cool multiple components simultaneously. The design prioritizes direct contact and ease of installation over adjustable airflow or complex mounting systems.
Setup and everyday use
Setup is straightforward because the kit includes preapplied thermal conductive adhesive tape. You do not need to buy separate mounting hardware or thermal paste. This feature simplifies installation for devices with flat surfaces. You simply peel the backing and press the heatsink onto the component. The adhesive secures the copper block in place for long-term use. This method works well for small electronics where traditional screws or clips are impractical. The listing specifies compatibility with 3D printers, NEMA 17 stepper motors, and TEC1-12706 thermoelectric Peltier coolers. You can apply these heatsinks to any device that generates heat and has a flat area of at least 40mm by 40mm. The compact dimensions allow it to fit into tight spaces without interfering with other components. Daily use involves passive cooling. The copper material absorbs heat from the target device and dissipates it into the surrounding air. You do not need to manage fans or power cables for this specific unit. It relies entirely on thermal conduction and natural convection. Keep in mind that the 3D printer, NEMA 17, and Peltier cooler are not included. You must source these devices separately. The kit provides only the cooling elements. Ensure the surface you attach the heatsink to is clean and flat. This ensures maximum contact between the copper and the heat source. The adhesive tape is designed for this direct contact. This setup is ideal for hobbyists or technicians who need to manage heat in small enclosures. You get two units, so you can cool multiple components simultaneously if needed.
Before You Buy This Heatsink
This kit is designed for specific small electronics, not standard desktop CPUs. You must verify that your target device has a flat surface compatible with the 40mm by 40mm footprint. The listing notes it suits 3D printers, NEMA 17 stepper motors, and TEC1-12706 Peltier coolers. Do not assume it fits a main processor. Since the mounting relies on adhesive tape, you need a clean, dry, and level area for proper bonding. Dust accumulation on the copper fins can reduce efficiency over time. You should occasionally wipe the surface with a dry cloth to maintain performance. This product sits outside the main category of CPU air coolers. It serves as a supplementary cooling aid for auxiliary components. If you need to cool a primary processor, look at larger heatsinks with fans. This copper block is a niche tool for precise, localized heat dissipation in compact setups.
Check before you buy
- Verify your device has a flat surface for the 40mm base.
- Check if the target component matches the listed compatible devices.
- Ensure the mounting area is clean and dry for the adhesive.
- Confirm the 4mm height fits within your available clearance space.
The product at a glance
Easycargo 40mm Copper Heatsink 2-Pack
Best for: cooling small electronics and stepper motors
- Material
- copper
- Compatible Device
- 3D printers, NEMA 17, Peltier Cooler
- Dimensions
- 40mm x 40mm x 4mm
- Mounting Type
- preapplied adhesive tape
- Features
- Thermal Tape
- Weight
- 1.27 ounces
View on Amazon: Easycargo 40mm Copper Heatsink 2-Pack Affiliate link
This kit includes two 40x40x4mm copper heatsinks designed for small components. The copper material offers efficient heat dissipation for devices like 3D printers, NEMA 17 steppers, or Peltier coolers. Each unit comes with pre-applied thermal adhesive tape, simplifying installation. The compact 0.16-inch height fits tight spaces. You get two units in this pack, making it suitable for cooling multiple small parts simultaneously without complex mounting hardware.
Pros
- Made of pure copper for effective heat transfer
- Pre-applied thermal adhesive tape for easy mounting
- Compact 40x40x4mm size fits tight spaces
- Includes two heatsinks in one package
Cons
- Very low 4mm height limits airflow cooling
- Adhesive tape may not suit all surfaces
- Not designed for high-power CPU cooling
Good fit if
- You need to cool NEMA 17 stepper motors
- You are building a compact 3D printer
- You require passive cooling for small electronics
Skip if
- You need to cool a standard desktop CPU
- You require active fan cooling solutions
- You need heatsinks larger than 40mm
Verdict: Easycargo 40mm Copper Heatsink 2-Pack is a simple passive cooling solution for small components like stepper motors. It fits your needs only if you are cooling low-power devices in tight spaces.
Specifications side by side
| Spec | Easycargo 40mm Copper Heatsink 2-Pack |
|---|---|
| Material | copper |
| Compatible Device | 3D printers, NEMA 17, Peltier Cooler |
| Dimensions | 40mm x 40mm x 4mm |
| Mounting Type | preapplied adhesive tape |
| Features | Thermal Tape |
| Weight | 1.27 ounces |
| Color | 2pcs 40x40x4mm Copper |
| Model | 404004C02-8810 |
Frequently asked questions
Is this heatsink suitable for a standard desktop CPU?
No, this kit is not designed for standard desktop CPUs. The listing specifies it is best for cooling small electronics and stepper motors. You should only use it for low-power devices in tight spaces. Standard CPUs generate more heat than this 40mm copper block can dissipate effectively.
Does the package include thermal paste?
No, it does not include separate tubes of thermal paste. The kit features preapplied thermal conductive adhesive tape. You simply peel the backing and press the heatsink onto the component. This eliminates the need to purchase additional mounting hardware or thermal compound for installation.
What are the exact dimensions of each heatsink?
Each unit measures 40mm by 40mm with a height of 4mm. In imperial units, this is 1.57 inches by 1.57 inches with a height of 0.16 inches. The compact footprint allows it to fit into small enclosures or on components with limited clearance.
How much does one heatsink weigh?
Each heatsink weighs 1.27 ounces. This lightweight design ensures it does not add significant mass to your project. The low weight is typical for small passive cooling solutions intended for lightweight electronics like stepper motors or small power regulators.
Is the material pure copper or an alloy?
The listing identifies the material as copper. Copper offers strong thermal conductivity, allowing the small block to absorb and spread heat efficiently. This material choice helps the heatsink perform reliably without requiring large surface areas, making it effective for its compact size.
Can I use this for a NEMA 17 stepper motor?
Yes, the listing notes this kit suits NEMA 17 stepper motors. It is designed for cooling small components like those found in 3D printers. You must verify that your motor has a flat surface compatible with the 40mm by 40mm footprint for proper adhesion.
What is the model number for this product?
The model number is 404004C02-8810. You can use this identifier to verify specifications or check compatibility with your specific device. The product name is Easycargo 40mm Copper Heatsink 2-Pack, which contains two identical units for your cooling needs.