MECCANIXITY 6x6x4mm Copper Heatsink 5-Pack or MECCANIXITY 20x20mm 0.3mm Copper Shims? Which MECCANIXITY Model to Buy
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You are deciding between the meccanixity copper heatsink 6x6x4mm self vs heatsink copper sheet shim for small component cooling. Both products use copper to improve heat dissipation for chips and ICs. They both use adhesive backing for installation. The main difference lies in their physical dimensions and intended mounting surface. One is a tall, block-style heatsink for direct chip coverage. The other is a flat, wide shim for filling gaps or covering larger areas. This guide compares their specs to help you choose the right fit for your hardware.
Key differences
| Aspect | MECCANIXITY 6x6x4mm Copper Heatsink 5-Pack | MECCANIXITY 20x20mm 0.3mm Copper Shims |
|---|---|---|
| Dimensions | 6x6x4mm | 20x20mm, 0.3mm thickness |
| Mounting Type | Ordinary Self Adhesive | Thermal Conductive Adhesive Tapes |
| Compatible Device | chip, IC chipset | Desktop Computer GPU CPU |
| Heat Resistance | not listed | Withstands up to 160 degrees |
Which one should you choose?
Choose MECCANIXITY 6x6x4mm Copper Heatsink 5-Pack if
- You need a compact heatsink to cover a small, square IC chip directly.
- You require a taller profile (4mm) to increase surface area for dissipation.
- You are cooling a specific chipset or processor component with limited space.
Choose MECCANIXITY 20x20mm 0.3mm Copper Shims if
- You need to fill a gap between a component and a case or heatsink.
- You want a larger surface area (20x20mm) to spread heat over a wider zone.
- You are cooling a GPU, CPU, or memory module on a desktop motherboard.
Verdict: Choose the 6x6x4mm heatsink if you need targeted cooling for a small, exposed IC chip. Choose the 20x20mm shim if you need to bridge a gap or cover a larger area on a GPU or motherboard. Both use copper for efficient heat transfer, but their shapes serve different mechanical needs.
Comparing Size and Mounting Options
Physical Dimensions
Product A offers a compact 6x6x4mm footprint, measuring 0.24 inches by 0.24 inches with a height of 0.16 inches. Product B is significantly larger at 20x20mm, or 0.79 inches by 0.79 inches, with a thickness of just 0.3mm. You need to match the heatsink size to the component area. The smaller fins on Product A fit tight spaces around small ICs. The wider sheet on Product B covers more surface area, which helps spread heat across larger chips or bridge components. Choose based on the physical space available on your board.
Mounting Adhesive
Product A uses ordinary self-adhesive backing for installation. You peel a protective film and stick it directly to the component. Product B uses thermal conductive adhesive tapes. This type of tape is designed to transfer heat more effectively than standard glue. Both methods allow you to peel and stick the unit without tools. The thermal conductive tape on Product B may offer better thermal transfer than the ordinary adhesive on Product A. If heat transfer through the mount matters, the specialized tape provides a practical advantage for cooling efficiency.
Compatible Devices
Product A is specified for chip and IC chipset cooling. It is designed for smaller electronic components that need localized heat dissipation. Product B lists compatibility with desktop computer GPU and CPU, as well as notebook north and south bridges. The larger surface area of Product B makes it suitable for broader components like graphics cards or chipset bridges. If you are cooling a specific small IC, Product A fits well. For larger components like a GPU or motherboard bridge, Product B covers more area.
Material Thickness
Product A has a height of 4mm, providing 0.16 inches of vertical space for heat dissipation fins. Product B is a thin shim with a thickness of 0.3mm, or 0.01 inches. The thicker design of Product A allows for more fin surface area to radiate heat into the air. The thin profile of Product B is better for filling gaps or providing a heat spreader layer without adding bulk. You should select the thickness based on whether you need height for fins or a low-profile solution for tight clearance areas.
Temperature Resistance
Product B explicitly states it can withstand high temperatures of 160 degrees. This specification indicates durability under thermal stress. Product A does not list a maximum temperature rating in the provided data. If your component generates significant heat, the rated resistance of Product B provides a clear safety margin. You can rely on the stated limit for Product B. For Product A, you must assume standard operating limits since the data does not specify them. This makes Product B the safer choice for high-heat environments.
Choose Based on Component Size
Users needing small heatsinks for specific IC chips
Product A measures 6x6x4mm. This compact size fits tightly around small integrated circuits and chipset components without taking up much space. The 4mm height provides adequate surface area for localized cooling on tiny processors where larger options would not fit.
Users cooling larger surfaces like GPU or North Bridge
Product B offers a 20x20mm footprint. This larger area spreads heat more effectively across broad surfaces such as graphics cards or north bridge chips. The 0.3mm thickness allows it to fit in tight gaps while still providing a substantial copper contact area for better thermal transfer.
Users requiring high temperature resistance for durability
Product B is rated to withstand temperatures up to 160 degrees. This makes it suitable for environments where components generate significant heat. The thermal conductive adhesive backing ensures a stable connection to the hardware, maintaining performance even under sustained high-temperature conditions compared to standard adhesives.
The products compared
MECCANIXITY 6x6x4mm Copper Heatsink 5-Pack
Best for: cooling small IC chips and processors
- Material
- Copper
- Compatible Device
- chip, IC chipset
- Dimensions
- 6x6x4mm
- Mounting Type
- Self Adhesive
View on Amazon: MECCANIXITY 6x6x4mm Copper Heatsink 5-Pack Affiliate link
This pack of five copper heatsinks measures 6x6x4mm. The material conducts heat efficiently from IC chips and processors. Each unit includes self-adhesive backing for direct mounting. The compact size fits small components where space is tight. You get multiple units for various cooling needs. This setup is practical for electronics requiring targeted heat dissipation on small surfaces.
Pros
- Pure copper construction for high thermal conductivity
- Compact 6x6x4mm dimensions fit small IC chips
- Includes self-adhesive backing for easy installation
- Five-pack provides multiple units for various components
Cons
- Small 4mm height limits surface area for heat dissipation
- Standard adhesive may not suit all surface types
- Manual measurement allows for slight size variance
Good fit if
- You need to cool small IC chips or processors
- You require multiple heatsinks for a single project
- You have limited space around the component
Skip if
- You need to cool large high-wattage CPUs
- You prefer screw-mounting over adhesive
- You need heatsinks taller than 4mm
Verdict: MECCANIXITY 6x6x4mm Copper Heatsink 5-Pack is a solid option for cooling small IC chips with its compact copper build and included adhesive. It suits electronics projects where space is limited and multiple units are needed.
MECCANIXITY 20x20mm 0.3mm Copper Shims
Best for: Cooling small IC chips and memory modules
- Material
- Copper
- Compatible Device
- Desktop Computer GPU CPU
- Dimensions
- 20mm x 20mm, 0.3mm thickness
- Mounting Type
- Thermal Conductive Adhesive Tapes
- Length
- 0.79 inches
- Width
- 0.79 inches
View on Amazon: MECCANIXITY 20x20mm 0.3mm Copper Shims Affiliate link
This is a 20mm by 20mm copper shim with a 0.3mm thickness. It uses thermal conductive adhesive for mounting. The copper material transfers heat from small components like ICs or memory modules. You can peel the backing to attach it directly. The pads withstand temperatures up to 160 degrees. This kit includes five sets of these thin copper sheets for targeted cooling.
Pros
- 20mm x 20mm copper construction
- 0.3mm thin profile
- Thermal conductive adhesive backing
- Withstands 160 degrees heat
Cons
- Surface darkens when exposed to air
- Small 20mm size limits use cases
- Requires sanding for optimal appearance
Good fit if
- You need to cool small IC chips
- You require a thin 0.3mm shim
- You are cooling memory modules or bridges
Skip if
- You need large heatsinks for CPUs
- You prefer pre-applied thermal pads
- You want a polished copper finish
Verdict: MECCANIXITY 20mm Copper Shim 0.3mm is a practical solution for cooling small electronic components like graphics cards or chipsets. You should buy it if you need a thin, adhesive-backed copper pad for targeted heat transfer.
Specifications side by side
| Spec | MECCANIXITY 6x6x4mm Copper Heatsink 5-Pack | MECCANIXITY 20x20mm 0.3mm Copper Shims |
|---|---|---|
| Material | Copper | Copper |
| Compatible Device | chip, IC chipset | Desktop Computer GPU CPU |
| Dimensions | 6x6x4mm | 20mm x 20mm, 0.3mm thickness |
| Mounting Type | Self Adhesive | Thermal Conductive Adhesive Tapes |
| System Type | not stated | Desktop |
| Length | not stated | 0.79 inches |
| Width | not stated | 0.79 inches |
| Weight | not stated | 0.35 ounces |
| Size | 6x6x4mm | 0.3mm |
| Model | mea220402ee0154 | mea231220ee000001 |
Frequently asked questions
What is the main difference between the 6x6x4mm heatsink and the 20mm copper shim?
The primary difference is their physical shape and intended use. The 6x6x4mm heatsink is a block with height, designed to dissipate heat from small IC chips. The 20mm shim is a flat, thin sheet. You should choose the block for vertical heat spreading and the shim for filling gaps or cooling flat surfaces like memory modules.
Which MECCANIXITY model is better for cooling graphics card chips?
The MECCANIXITY 20x20mm 0.3mm Copper Shims are better for graphics cards. They are explicitly compatible with GPUs and designed to cool small electronic components like chipsets. Their thin profile allows them to fit into tight spaces on the card while providing a copper surface for heat transfer.
Do these copper heatsinks come with adhesive?
Yes, both models include adhesive backing for installation. The 6x6x4mm heatsink comes with included adhesive to secure it to components. The 20mm copper shim is also adhesive-backed. This allows you to stick them directly onto chips or modules without needing additional thermal pads or clips.
What are the exact dimensions of the 6x6x4mm heatsink?
The MECCANIXITY 6x6x4mm Copper Heatsink measures 0.24 inches in width and length, with a height of 0.16 inches. This compact footprint makes it suitable for small integrated circuits where space is limited. The 4mm height provides a small vertical surface area for heat dissipation.
Is the 20mm shim thick enough to cause clearance issues?
The shim is very thin at 0.3mm. This minimal thickness reduces the risk of clearance issues with nearby components or heatsinks. It is designed to sit flush against the component surface, making it ideal for applications where space is extremely tight, such as on memory modules.
Can I use the 6x6x4mm heatsink for desktop GPU cooling?
While it uses copper, the 6x6x4mm heatsink is not listed as compatible with GPUs. It is best for cooling small IC chips and processors. For desktop GPU cooling, the 20mm copper shim is the recommended option due to its larger surface area and specific compatibility with graphics card components.
What material are both MECCANIXITY products made from?
Both products are made from copper. Copper is chosen for its high thermal conductivity, which helps move heat away from sensitive electronic components. This material ensures efficient heat dissipation for both the compact block heatsink and the flat shim, regardless of their different shapes.
How many units are included in the 6x6x4mm heatsink pack?
The MECCANIXITY 6x6x4mm Copper Heatsink comes in a 5-pack. This allows you to cool multiple small components simultaneously, such as several memory chips or voltage regulators. The 20mm shim is sold as individual units, allowing you to buy only the quantity you need for specific spots.