MECCANIXITY 20x20mm 0.3mm Copper Shims vs MECCANIXITY 20mm x 20mm x: Spec Comparison
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You are deciding between the meccanixity heatsink copper sheet shim vs heatsink copper pad shim from MECCANIXITY. Both options use pure copper for heat dissipation on small electronic components. The main difference lies in their thickness and mounting method. One includes adhesive backing for easy installation, while the other is a bare shim requiring separate adhesive. Both handle high temperatures up to 160 degrees. You should choose based on your specific gap size and installation preferences.
Key differences
| Aspect | MECCANIXITY 20x20mm 0.3mm Copper Shims | MECCANIXITY 20mm x 20mm x 1.5mm Copper Shims |
|---|---|---|
| Thickness | 0.3mm | 1.5mm |
| Mounting Type | Thermal Conductive Adhesive Tapes | Adhesive not included |
| Package Quantity | 5 Sets | 6 Pcs |
| Compatible Device | Desktop Computer GPU CPU | Chips, notebooks, memory modules |
Which one should you choose?
Choose MECCANIXITY 20x20mm 0.3mm Copper Shims if
- You need a thin shim that fills small gaps between components
- You want pre-applied thermal adhesive for immediate installation
- You are cooling desktop GPU or CPU chips directly
Choose MECCANIXITY 20mm x 20mm x 1.5mm Copper Shims if
- You need a thicker shim to bridge larger distances
- You prefer to use your own specific adhesive material
- You want a slightly higher quantity of shims in the package
Verdict: Choose the 0.3mm shim if you need a low-profile solution with built-in adhesive. The 1.5mm shim is better for larger gaps where you want to control the mounting adhesive yourself. Both provide durable copper heat transfer for small electronic devices.
Shim Thickness and Mounting Options
Thickness options
You have different thickness choices for your build. Product A, the MECCANIXITY 20x20mm 0.3mm Copper Shims, starts at a very thin 0.3mm. It also offers 0.5mm, 0.8mm, 1mm, and 2mm variants. This allows you to fill very small gaps precisely. Product B, the MECCANIXITY 20mm x 20mm x 1.5mm Copper Shims, includes a 1.5mm option in its list. It also covers 0.1mm, 0.3mm, 0.5mm, 0.6mm, 0.8mm, and 1mm. Both provide a wide range of sizes to match your specific hardware clearance needs without guessing.
Mounting method
Installation differs significantly between these two shims. Product A comes with thermal conductive adhesive tapes already attached. You just peel the backing and stick it to your component. This makes application quick and secure for most users. Product B does not include any adhesive. The description explicitly states you must use your own adhesive, which is not included. You need to source separate mounting material before installation. This adds a step to your process but offers flexibility if you prefer a specific glue type.
Package quantity
The number of shims in the box varies by product. Product A includes five sets of copper sheets. This is sufficient for a single GPU or CPU installation with one spare. Product B provides six pieces per package. You get one extra shim compared to Product A. This might be useful if you are repairing multiple devices or want a backup. Both quantities are small, so you will likely need to buy more if you are cooling many components simultaneously. Check your total count needs before ordering.
Material composition
Both products use pure copper for heat transfer. This material is chosen for its high thermal conductivity. Product A specifies copper paired with thermal conductive glue backing. Product B lists the material simply as copper. Both state they can withstand temperatures up to 160 degrees Celsius. This durability ensures they remain effective under heat stress. The cooling effect is not affected by surface darkening over time. You can sand the surface if needed. The core heat dissipation material is identical in quality and type.
Compatible devices
Both shims target small electronic components that lack active cooling. Product A lists desktop computer GPUs and CPUs as compatible devices. It also mentions cooling chips, notebooks, and memory modules. Product B focuses on chips, notebooks, north and south bridges, and memory modules. It also mentions graphic cards. Both are suitable for similar applications. You can use either for cooling VRMs on a motherboard or heat sinks on a laptop. The slight difference in listing does not change their practical use for most small-scale cooling tasks.
Choose your shim by thickness needs
Users needing ultra-thin 0.3mm gap fillers
Product A offers a 0.3mm thickness with pre-applied thermal conductive adhesive tapes. This allows you to peel and stick the copper shim directly onto components like GPUs or CPUs without buying separate mounting hardware. The included adhesive simplifies installation for tight spaces where minimal height is critical.
Users requiring thicker 1.5mm heat spreaders
Product B provides a 1.5mm thickness option, which is significantly taller than the thinnest variant of Product A. This extra mass can help dissipate heat from larger chips or memory modules that generate more thermal load. You will need to supply your own adhesive for secure attachment.
Buyers wanting ready-to-use adhesive backing
Product A comes with thermal conductive adhesive tapes already attached to the copper sheets. This means you do not need to source additional mounting materials. The package includes five sets, making it convenient for cooling multiple small electronic devices like north bridges or graphic cards without extra preparation.
The products compared
MECCANIXITY 20x20mm 0.3mm Copper Shims
Best for: filling small gaps on desktop GPUs
- 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 MECCANIXITY shim is a 20mm x 20mm copper pad with a 0.3mm thickness. It uses thermal conductive adhesive tape for mounting. The copper material handles heat up to 160 degrees. It fits desktop GPUs and CPUs. The thin profile helps fill small gaps between components and heatsinks. You get five sets in the package.
Pros
- 20mm x 20mm copper construction
- 0.3mm thickness for small gaps
- Thermal conductive adhesive backing
- Heat resistance up to 160 degrees
Cons
- 0.3mm thickness is thinner than the 1.5mm alternative
- Surface darkens when exposed to air
- Requires sanding to restore surface appearance
Good fit if
- You need to fill a very small gap under 0.5mm
- You are cooling a GPU or CPU chip directly
- You want a thin copper thermal conductor
Skip if
- You require a thicker shim for larger gaps
- You prefer a pre-sanded copper surface
- You need a shim with mechanical mounting holes
Verdict: MECCANIXITY 20x20mm 0.3mm Copper Shim suits builders who need a thin copper pad to bridge tiny gaps on desktop GPUs or CPUs. The adhesive backing makes installation simple for small electronic cooling tasks.
MECCANIXITY 20mm x 20mm x 1.5mm Copper Shims
Best for: bridging larger gaps on chips and memory
- Material
- Copper
- Compatible Device
- Chips, notebooks, memory modules
- Dimensions
- 20mm x 20mm x 1.5mm
View on Amazon: MECCANIXITY 20mm x 20mm x 1.5mm Copper Shims Affiliate link
This MECCANIXITY copper shim measures 20mm by 20mm with a 1.5mm thickness. It is made of pure copper to transfer heat from chips and memory modules. The pads withstand temperatures up to 160 degrees. You must apply your own adhesive to attach them. This thicker option helps fill larger gaps between components and heatsinks for better contact.
Pros
- Pure copper material for efficient heat transfer
- 1.5mm thickness fills larger gaps effectively
- Heat resistance up to 160 degrees
- Includes six copper sheets per package
Cons
- Adhesive is not included in the package
- Surface darkens when exposed to air
- Requires manual sanding if surface finish matters
Good fit if
- You need to bridge a 1.5mm gap
- You are cooling chips or memory modules
- You want to use pure copper material
Skip if
- You need a thinner 0.3mm shim
- You want pre-applied adhesive pads
- You prefer a fixed-size single option
Verdict: MECCANIXITY 20mm Copper Shim 1.5mm suits builders who need extra height to bridge gaps between components and heatsinks. It is a practical solution for cooling chips and memory modules where standard thin shims leave too much space.
Specifications side by side
| Spec | MECCANIXITY 20x20mm 0.3mm Copper Shims | MECCANIXITY 20mm x 20mm x 1.5mm Copper Shims |
|---|---|---|
| Material | Copper | Copper |
| Compatible Device | Desktop Computer GPU CPU | Chips, notebooks, memory modules |
| Dimensions | 20mm x 20mm, 0.3mm thickness | 20mm x 20mm x 1.5mm |
| Mounting Type | Thermal Conductive Adhesive Tapes | not stated |
| System Type | Desktop | not stated |
| Length | 0.79 inches | not stated |
| Width | 0.79 inches | not stated |
| Weight | 0.35 ounces | not stated |
| Size | 0.3mm | 20mm x 20mm x 1.5mm |
| Model | mea231220ee000001 | mea231224ee000534 |
Frequently asked questions
Are MECCANIXITY copper shims pure metal?
Yes, both listed products are made of pure copper. This material choice ensures high thermal conductivity for transferring heat away from components. You get a solid metal shim rather than a composite or plastic base. The copper construction helps bridge gaps effectively while maintaining efficient heat dissipation for your desktop GPU or CPU.
How thick is the 0.3mm shim?
The thinner option measures exactly 0.3mm in height. This ultra-thin profile is ideal for filling tiny gaps on desktop GPUs or CPUs. It sits low enough to avoid interference with nearby components. You can use it when standard thermal pads are too thick for your specific clearance constraints.
What is the height of the thicker shim?
The thicker variant stands at 1.5mm high. This extra height allows you to bridge larger gaps between chips, memory modules, and heatsinks. It is a practical solution when standard thin shims leave too much space. You get a substantial copper block that ensures solid contact across wider distances.
Do these shims come with adhesive?
The 0.3mm version includes pre-applied thermal conductive adhesive tapes. This allows you to peel and stick the shim directly onto components without buying separate glue. The adhesive simplifies installation for small electronic cooling tasks. You get a ready-to-use solution that secures the copper shim firmly in place.
What are the dimensions of the shims?
Both shims share the same footprint of 20mm by 20mm, which equals 0.79 inches by 0.79 inches. This square shape fits standard component layouts easily. You get a consistent surface area for heat transfer regardless of the thickness you choose. The dimensions ensure compatibility with most desktop GPU and CPU surfaces.
Which shim is better for memory modules?
The 1.5mm shim is better for memory modules. It provides the extra height needed to bridge gaps between memory chips and heatsinks. The 0.3mm version is too thin for larger clearance issues. You should choose the thicker option when your memory modules sit significantly below the cooler base.
Can I use these shims on CPUs?
Yes, both shims are suitable for desktop CPUs. The 0.3mm version is ideal for filling small gaps directly on the CPU surface. The 1.5mm version works if you need to raise the component height. You can use either product to improve thermal contact between the processor and the cooler.