Easycargo 40mm Copper Heatsink Kit Alternatives: 6 Similar Picks Compared

Latest update: October 13, 2026

As an Amazon Associate we earn from qualifying purchases. Links on this page are affiliate links.

When looking for easycargo 40mm copper heatsink kit alternatives, comparing key dimensions and material specs helps you find the right match. The original Easycargo kit features two copper heatsinks measuring 40mm by 40mm with a slim 4mm height, weighing 1.27 ounces. It includes preapplied thermal conductive adhesive tape, making it well suited for flat surfaces like 3D printer NEMA 17 stepper motors and TEC1-12706 Peltier coolers where vertical clearance is limited to 0.16 inches.

You might need something else if your target hardware requires a different footprint, metal, or fin height. Components like VRMs, discrete ICs, and laptop memory modules require smaller 9mm or 15mm dimensions or rectangular SODIMM layouts. If your enclosure provides more headroom, taller 11mm aluminum heatsinks or multi-piece kits offer alternative profiles and lighter weights. These 6 alternatives were chosen because their specifications overlap with the original, sharing preapplied thermal tape, copper or aluminum construction, and compatibility with compact electronics.

Our top pick: Easycargo 40mm Copper Heatsink 2-Pack.

Comparing Easycargo 40mm Heatsink Kit Alternatives

Easycargo 15x15x0.5mm Copper Shims 20-Pack

The Easycargo 15x15x0.5mm Copper Shims pack includes 20 pieces, whereas the original kit supplies two 40x40x4mm plates. At 0.59 inches square and 0.5mm thick, these shims fit into ultra-low-profile spaces where the original 4mm height is too tall. Both use copper construction and pre-applied adhesive tape. You give up the broad 1.57-inch surface area and thermal mass of the 40mm model, meaning these shims cannot cover full NEMA 17 stepper motors or Peltier coolers. You should choose this 20-pack if you need to dissipate heat from small laptop chips, discrete GPUs, or RAM modules with minimal vertical clearance.

Easycargo 20-Piece Copper and Aluminum Heatsink Kit

The Easycargo 20-Piece Copper and Aluminum Heatsink Kit provides 20 small heatsinks instead of two large plates. Each piece measures 0.55 by 0.55 inches with a taller 0.28-inch height, compared to the original 1.57 by 1.57 by 0.16-inch profile. The set mixes aluminum and copper elements, weighing 0.64 ounces total. You gain enough individual heatsinks to cover several components across a board. However, you give up the pure copper build of the original, as well as the wide surface contact needed for 40mm NEMA 17 motors and Peltier devices. Pick this kit if you need to cool multiple microchips on Raspberry Pi boards.

Easycargo 9mm Copper VRM Heatsinks

The Easycargo 9mm Copper Heatsink set provides 10 small units measuring 0.35 by 0.35 inches (9x9mm), matching the original heatsink's 0.16-inch (4mm) height and copper material. Both options feature pre-applied thermal adhesive tape. This set gives you eight more pieces than the original two-piece kit, allowing targeted cooling across separate microelectronics. You give up the unified 1.57-inch width, making it unsuitable for bridging larger contact plates like 40mm Peltier coolers. Pick this alternative if you need to cool individual board-level components such as VRMs, MOSFETs, or discrete stepper drivers where full 40mm plates are physically too wide.

Easycargo 9mm Black Aluminum Heatsinks (30-Pack)

The Easycargo 9mm Black Aluminum Heatsink pack includes 30 pieces measuring 0.35 by 0.35 inches with an extended 0.47-inch height. This provides significantly more vertical fin clearance than the flat 0.16-inch original copper heatsink. Both include thermal adhesive tape. With this pack, you receive 30 units weighing 0.74 ounces in total, rather than two pieces weighing 1.27 ounces. However, you give up copper construction in favor of black aluminum, and you lose the wide 1.57-inch base that fits NEMA 17 faces. Choose this pack if you need to outfit multiple 3D printer stepper motor drivers where vertical height is available.

Easycargo SODIMM Copper Memory Heatsink

The Easycargo SODIMM Copper Heatsink features a rectangular profile measuring 0.91 by 2.48 inches with a slim 0.5mm thickness, secured by pre-applied 3M 8810 tape. In contrast, the original heatsink uses a square 1.57 by 1.57-inch footprint with a 0.16-inch (4mm) height. This alternative gives you a shape tailored directly for laptop RAM modules, fitting tight vertical spaces where 4mm heatsinks would collide with chassis walls. You give up the square shape and thicker copper base required for NEMA 17 stepper motors or 40mm Peltier modules. Pick this model if you need dedicated heat dissipation across laptop SODIMM memory sticks.

Awxlumv 40mm Aluminum Heatsink 4-Pack

The Awxlumv 40mm Heatsink pack provides four aluminum units matching the original 1.57 by 1.57-inch (40x40mm) width and length, but features an 11mm (0.43-inch) height. This fin structure is much taller than the original 4mm (0.16-inch) profile, while weighing less at 0.63 ounces. You receive four heatsinks instead of two, along with pre-applied thermal tape. You give up the low-clearance fit and copper material of the original model. Choose this Awxlumv four-pack if your 3D printer or electronic enclosure provides at least 11mm of vertical clearance and you prefer taller aluminum fins for 40mm surface mounting.

Quick picks

#	Product	Best for	Price
1	Easycargo 40mm Copper Heatsink 2-Pack Best overall	low-profile 40mm stepper motor and Peltier cooling	Check price of Easycargo 40mm Copper Heatsink 2-Pack on Amazon
2	Easycargo 15x15x0.5mm Copper Shims 20-Pack Also great	cooling small laptop chips and tight clearances	Check price of Easycargo 15x15x0.5mm Copper Shims 20-Pack on Amazon
3	Easycargo 20-Piece Copper and Aluminum Heatsink Kit Best budget	budget multi-chip and Raspberry Pi cooling	Check price of Easycargo 20-Piece Copper and Aluminum Heatsink Kit on Amazon
4	Easycargo 9mm Copper VRM Heatsinks Also great	cooling small VRMs, MOSFETs, and stepper drivers	Check price of Easycargo 9mm Copper VRM Heatsinks on Amazon
5	Easycargo 9mm Black Aluminum Heatsinks (30-Pack) Best premium	3D printer stepper motor driver cooling	Check price of Easycargo 9mm Black Aluminum Heatsinks (30-Pack) on Amazon
6	Easycargo SODIMM Copper Memory Heatsink Also great	Cooling low-clearance laptop SODIMM memory modules	Check price of Easycargo SODIMM Copper Memory Heatsink on Amazon
7	Awxlumv 40mm Aluminum Heatsink 4-Pack	components with at least 11mm clearance	Check price of Awxlumv 40mm Aluminum Heatsink 4-Pack on Amazon

Our 7 picks

Best overall

Easycargo 40mm Copper Heatsink 2-Pack

Best for: low-profile 40mm stepper motor and Peltier cooling

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 40mm by 40mm copper heatsinks with a low 4mm profile. Each heatsink comes with preapplied thermal conductive adhesive tape for tool-free installation. You get pure copper construction designed to fit square components such as NEMA 17 stepper motors, 3D printer parts, and TEC1-12706 thermoelectric Peltier coolers. It suits you if you need compact, passive copper cooling for 40mm square components in tight spaces.

Pros

Solid copper construction
Low 4mm profile fits tight clearances
Preapplied thermal conductive adhesive tape
Sized for 40mm components like NEMA 17 motors

Cons

Only two heatsinks included per pack
Low 4mm height provides less surface area than taller heatsinks
Adhesive mount only with no mechanical mounting hardware

Good fit if

You need 40x40mm copper cooling with a slim 4mm clearance.
You want preapplied adhesive tape for direct surface mounting.
You cool components like NEMA 17 motors or TEC1-12706 Peltier units.

Skip if

You need more than two heatsinks in a single package.
You have clearance for taller heatsinks with larger surface area.
You require screw-down or spring-clip mounting methods.

Verdict: Easycargo 40mm Copper Heatsink Kit delivers low-profile copper thermal dissipation for compact 40mm surfaces with preapplied adhesive tape. It provides an exact fit for 3D printer stepper motors and Peltier modules where vertical clearance is limited.

Also great

Easycargo 15x15x0.5mm Copper Shims 20-Pack

Best for: cooling small laptop chips and tight clearances

Material: Copper
Cooling Method: passive
Compatible Device: Laptop GPU CPU IC Chips VGA RAM
Dimensions: 15x15x0.5mm
Mounting Type: Pre applied adhesive tape backing
Features: Thermal Tape

View on Amazon: Easycargo 15x15x0.5mm Copper Shims 20-Pack Affiliate link

This pack provides 20 small copper shims designed for passive cooling on compact electronic components. Each square piece measures 15x15mm with a thin 0.5mm profile, making them ideal when you need to bridge tight clearance gaps. They arrive with 3M 8810 thermal conductive adhesive tape pre-applied to the backing. This set suits you if you need to cool laptop GPUs, CPUs, VRAM, or small IC chipsets.

Pros

Includes 20 pure copper heatsink shims
Pre-applied 3M 8810 thermal conductive adhesive tape backing
Compact 15x15x0.5mm dimensions fit tight component clearances
Designed for passive cooling on GPUs, VRAM, and IC chips

Cons

Flat 0.5mm pad profile lacks tall cooling fins
15x15mm surface area is much smaller than 40mm heatsinks

Good fit if

You need small 15x15mm copper shims to cool compact laptop ICs, VRAM, or chipsets.
You want pre-applied 3M 8810 thermal adhesive tape for mounting without extra supplies.
You require multiple copper pads across several chips from a single 20-piece pack.

Skip if

You need a larger 40mm heatsink footprint for broader thermal coverage.
You require raised heatsink fins rather than flat 0.5mm copper shims.

Verdict: Easycargo 15mm Copper Heatsink Shims offer a slim 0.5mm copper profile and pre-applied 3M tape for cooling tight spaces. They work well when standard 40mm heatsinks are too large for your components.

Best budget

Easycargo 20-Piece Copper and Aluminum Heatsink Kit

Best for: budget multi-chip and Raspberry Pi cooling

Material: Aluminum + Copper
Compatible Device: Raspberry Pi 5 4 3 boards
Mounting Type: Pre-applied adhesive tape backing
Features: Thermal Tape
Dimensions: 0.55 × 0.55 × 0.28 inches
Weight: 0.64 ounces

View on Amazon: Easycargo 20-Piece Copper and Aluminum Heatsink Kit Affiliate link

This Easycargo kit provides 20 small heatsinks, combining 15 aluminum units with 5 copper pad shims. Each piece features pre-applied thermal conductive adhesive tape for direct mounting without extra thermal compound. Measuring 0.55 by 0.55 inches with a 0.28-inch height, these compact heatsinks fit Raspberry Pi 3, 4, and 5 boards. You will find them suitable if you need multi-chip cooling for small components like VRAM, MOSFETs, and IC chips.

Pros

Includes 20 pieces: 15 aluminum heatsinks and 5 copper shims
Pre-applied thermal conductive adhesive tape backing
Compatible with Raspberry Pi 3, 4, and 5 boards
Compact 0.55 by 0.55-inch footprint for small IC chips

Cons

Only 5 of the 20 pieces are copper
Small individual size does not cover 40mm surfaces directly

Good fit if

You need multiple small heatsinks for Raspberry Pi boards or IC chips.
You want pre-applied thermal adhesive tape for quick installation.
You prefer a mixed package of aluminum and copper heatsinks.

Skip if

You require a single 40mm heatsink plate.
You need an all-copper heatsink setup.

Verdict: Easycargo 20-Piece Aluminum and Copper Heatsink Kit provides versatile, tape-mounted cooling for Raspberry Pi boards and discrete IC chips. It gives you 20 mixed metal shims for multi-component hardware setups.

Also great