6 Best Alternatives to the Geekworm Aluminum Passive Raspberry Pi (2026)

How these alternatives compare

Easycargo 20-Piece Copper and Aluminum Heatsink Kit

The Easycargo kit uses both copper and aluminum for heat dissipation, whereas the Geekworm relies solely on aluminum alloy. This kit includes twenty small heatsinks with thermal tape, offering a versatile solution for cooling multiple components on a Raspberry Pi board. It is significantly smaller, measuring 0.55 by 0.28 inches, compared to the Geekworm’s 2.5 by 1.65 inch profile. You sacrifice the large, single-piece wave-shaped fin design for modular coverage. This option is best if you need to cool various chips rather than just the main processor. It lacks the integrated mounting screws of the Geekworm model.

Awxlumv 100x100x18mm Aluminum Heatsink

The Awxlumv heatsink is a passive aluminum block designed for power components like MOSFETs, not specifically for the Raspberry Pi 5. It measures 3.94 by 0.71 inches, which is wider than the Geekworm’s 2.5 inch length but thinner at 0.71 inches versus 0.59 inches. It lacks the specific mounting hardware for Pi 5 GPIO access. This unit is better suited for compact power electronics where space is tight. It does not offer the port-accessible design or wave-shaped fins found on the Geekworm H509. You should choose this only if your project involves cooling power components rather than a single-board computer.

Geekworm 12mm Aluminum CM4 Heatsink

The Geekworm C235 is designed for the Raspberry Pi Compute Module 4, not the Pi 5. It is smaller, measuring 2.13 by 1.54 inches, and weighs 0.71 ounces compared to the 1.55 ounces of the Pi 5 heatsink. It uses a 12mm thickness design, which is thinner than the 15mm H509. This model is intended for CM4 passive cooling and may require an additional 30mm fan for optimal airflow. It does not fit the Pi 5 form factor. If you are building with a Compute Module 4, this is the appropriate choice. It shares the aluminum material but differs in compatibility and dimensions.

Supermicro 1U Passive Server Heatsink

The Supermicro SNK-P0037P is a 1U server heatsink for LGA1366 sockets, intended for dual-processor Xeon 5500 series systems. It is massive, measuring 25 by 3.6 inches, and weighs 12.8 ounces. This is not a Raspberry Pi alternative. It is designed for enterprise hardware in strict 1U chassis spaces. You would only consider this if you are assembling a specialized server build rather than a single-board computer project. It lacks any compatibility with Raspberry Pi boards or ports. The scale and purpose are entirely different from the compact, passive cooling solution designed for consumer electronics.

Supermicro 1U Passive Server Heatsink

The Supermicro SNK-P0046P is a passive heatsink for LGA 1150 and 1155 sockets, used in 1U servers. It measures 3.6 by 1.1 inches and weighs 8 ounces. This component is built for low-power Xeon or Core i3 processors in constrained server chassis. It is not compatible with Raspberry Pi boards. The form factor is designed for desktop server motherboards, not single-board computers. You should avoid this unless you are working on a legacy server build. It does not offer the port access or compact dimensions needed for Raspberry Pi projects. The cooling method is passive, but the application is strictly for enterprise hardware.

Supermicro 1U Passive Server CPU Heatsink

The Supermicro SNK-P0042P is a passive heatsink for AMD Opteron 2000 or 8000 series CPUs in Socket G34 or F. It measures 3.94 by 3.54 inches and weighs 14.4 ounces. This is designed for 10-blade server builds in a 1U form factor. It is not suitable for Raspberry Pi devices. The size and socket compatibility are entirely different from the Geekworm H509. You would only use this for specific enterprise server hardware. It lacks the compact design and port accessibility required for single-board computers. The passive cooling is intended for high-density server environments, not consumer electronics projects.

Quick picks

Our 7 picks

1 Best overall

Geekworm Aluminum Passive Raspberry Pi 5 Heatsink

Best for: silent Raspberry Pi 5 builds

Material

Aluminum alloy

Cooling Method

Passive

Compatible Device

Raspberry Pi 5

Dimensions

63.5 x 42 x 15 mm

Mounting Type

Nylon screws

Weight

1.55 ounces

View on Amazon: Geekworm Aluminum Passive Raspberry Pi 5 Heatsink Affiliate link

This is a passive aluminum alloy heatsink designed for the Raspberry Pi 5. It measures 63.5 x 42 x 15 mm and weighs 44 grams. The wave-shaped fins increase surface area for heat dissipation without using a fan. It allows full access to all ports, including GPIO and HDMI. The package includes a 6W thermal pad and nylon screws for mounting.

Pros

• Noiseless fanless operation
• Wave-shaped fins for increased cooling area
• Full access to all Raspberry Pi 5 ports
• Includes 6W thermal pad and mounting screws

Cons

• Not compatible with older Raspberry Pi models like X1000 or M903
• Limited to passive cooling without active airflow
• Single unit does not cover all Pi 5 components simultaneously

Good fit if

• You need silent cooling for a Raspberry Pi 5
• You require full access to all ports and connectors
• You want a compact 15 mm thick solution

Skip if

• You own a Raspberry Pi 4 or older model
• You need active cooling with a fan
• You require compatibility with models like X1000 or X1207

Verdict: Geekworm H509 Passive Heatsink fits users who need silent, port-accessible cooling for the Raspberry Pi 5. It is a solid choice for compact builds where noise is a concern.

2 Best budget

Easycargo 20-Piece Copper and Aluminum Heatsink Kit

Best for: cooling multiple components on Raspberry Pi boards

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 kit includes 20 heatsinks for Raspberry Pi 5, 4, and 3 boards. You get 15 aluminum and 5 copper pads. Each unit uses pre-applied thermal adhesive tape for mounting. The dimensions are 0.55 by 0.55 by 0.28 inches. The total weight is 0.64 ounces. This set suits users who need cooling for multiple components or various chip types on the board.

Pros

• Includes 15 aluminum and 5 copper heatsinks
• Pre-applied thermal conductive adhesive tape
• Compatible with Raspberry Pi 5, 4, and 3
• Suitable for VRAM, VGA, RAM, and other chips

Cons

• Individual pads are small at 0.55 inches
• Adhesive tape may not suit all mounting preferences
• Raspberry Pi board is not included

Good fit if

• You need cooling for multiple Raspberry Pi models
• You want to cool various chips on the board
• You prefer pre-applied adhesive for easy installation

Skip if

• You need a single large heatsink for the whole board
• You require a board included in the package
• You prefer mechanical mounting over adhesive

Verdict: Easycargo 20pc Pi Heatsink Kit offers a versatile cooling solution for Raspberry Pi users. It is ideal for those who need to cool multiple components or various chip types on the board.

3 Also great

Awxlumv 100x100x18mm Aluminum Heatsink

Best for: compact passive cooling for power components

Material

Aluminum

Cooling Method

Passive

Compatible Device

MOSFET, IC, GPU, LED, PCB, Router

Dimensions

100x100x18mm

View on Amazon: Awxlumv 100x100x18mm Aluminum Heatsink Affiliate link

This is a 100x100x18mm passive aluminum heatsink with 16 fins. The anodized silver finish helps with heat dissipation and corrosion resistance. It measures 3.94 by 3.94 by 0.71 inches. The pure aluminum construction allows for rapid heat transfer without adding extra weight. It suits MOSFETs, ICs, LEDs, and routers. You need to provide your own mounting screws and thermal paste.

Pros

• 16 fins for efficient heat dissipation
• Anodized silver finish for corrosion resistance
• Compact 100x100x18mm dimensions
• Pure aluminum construction for rapid heat transfer

Cons

• No mounting screws included
• No thermal paste included
• Limited to 18mm height

Good fit if

• You need a compact passive cooler for MOSFETs or ICs
• You want a lightweight aluminum heatsink for routers
• You already have mounting hardware and thermal paste

Skip if

• You need a cooler taller than 18mm
• You require a pre-assembled kit with screws and paste
• You are cooling a high-power CPU without active airflow

Verdict: Awxlumv 100x100x18mm Passive Aluminum Heatsink fits users who need a small, lightweight passive solution for power components. It works well for MOSFETs and routers where space is tight.

4 Also great

Geekworm 12mm Aluminum CM4 Heatsink

Best for: Raspberry Pi CM4 passive cooling

Material

Aluminum alloy

Cooling Method

Passive Cooling

Compatible Device

Raspberry Pi Compute Module 4 CM4

Dimensions

54 x 39 x 12 mm

Features

Fan

Weight

0.71 ounces

View on Amazon: Geekworm 12mm Aluminum CM4 Heatsink Affiliate link

This Geekworm C235 heatsink is made of aluminum alloy for the Raspberry Pi Compute Module 4. It measures 54 x 39 x 12 mm and weighs 30 grams. The design includes a 12 mm thickness for passive cooling. You can attach a 30 mm fan above it for active cooling. A thermal pad is included, but you must cut it to fit the CPU. It is a solid option for CM4 builds.

Pros

• Constructed from durable aluminum alloy
• 12 mm thickness provides substantial surface area
• Compatible with 30 mm cooling fans for active use
• Includes a thermal pad for initial setup

Cons

• Requires manual cutting of the thermal pad
• Designed exclusively for CM4 modules
• No fan included for active cooling

Good fit if

• You use a Raspberry Pi Compute Module 4
• You want to add a 30 mm fan later
• You need a 12 mm thick passive solution

Skip if

• You use a standard Raspberry Pi board
• You need a pre-cut thermal pad
• You require active cooling without adding a fan

Verdict: Geekworm C235 12mm Aluminum Heatsink is a practical passive cooler for the CM4. It fits users who plan to add a 30 mm fan for better airflow.

5 Also great

Supermicro 1U Passive Server Heatsink

Best for: 1U dual-processor servers with LGA1366 sockets

Socket Compatibility

LGA1366

Server Height

1U

Cooling Method

Passive

Compatible Device

1U DP & 10-Blade Servers

Dimensions

3.6 x 25 x 3.6 inches

Mounting Type

Screw & Spring

View on Amazon: Supermicro 1U Passive Server Heatsink Affiliate link

This Supermicro heatsink is designed for 1U dual-processor and 10-blade servers. It uses passive cooling with no moving parts. The unit fits LGA1366 sockets and supports Xeon 5500 series processors. It measures 3.6 by 25 by 3.6 inches. The mounting method uses screws and springs. You should choose this if you need reliable heat dissipation for specific enterprise hardware without fan noise.

Pros

• Passive cooling method eliminates fan noise
• Compatible with LGA1366 sockets
• Supports Xeon 5500 series processors
• Uses secure screw and spring mounting

Cons

• Limited to LGA1366 socket compatibility
• Specific to 1U server chassis sizes
• Not suitable for standard desktop PCs

Good fit if

• You are building a 1U dual-processor server
• You use LGA1366 motherboards with Xeon 5500 CPUs
• You need silent operation in a blade server

Skip if

• You have a consumer desktop motherboard
• You use LGA1155 or LGA1150 sockets
• You require active fan cooling

Verdict: Supermicro SNK-P0037P 1U Passive Heatsink is a specialized component for 1U dual-processor servers using LGA1366 sockets. It fits your needs only if you are assembling enterprise hardware with Xeon 5500 series processors.

6 Best premium

Supermicro 1U Passive Server Heatsink

Best for: 1U servers with LGA 1150 CPUs

Socket Compatibility

LGA1150, LGA1155, LGA1156

Server Height

1U

Cooling Method

Passive

Compatible Device

X8, X9 1U UP Servers

Dimensions

3.6 x 1.1 x 3.6 inches

Mounting Type

Screw Spring, Mounting Bracket

View on Amazon: Supermicro 1U Passive Server Heatsink Affiliate link

This Supermicro heatsink is designed for 1U server chassis and supports LGA 1150, 1155, and 1156 sockets. It uses a passive cooling method with screw spring and mounting bracket installation. The unit measures 3.6 by 3.6 by 1.1 inches and weighs 8 ounces. It fits X8 and X9 1U UP servers. You should choose this if you need a compact, low-profile solution for older Intel processors in a server environment.

Pros

• Supports LGA 1150, 1155, and 1156 sockets
• Compact 1U form factor fits tight spaces
• Includes screw spring and mounting bracket
• Passive cooling requires no fan noise

Cons

• Passive cooling only suits low power CPUs
• Limited to older Intel server platforms
• Requires specific 1U server chassis compatibility

Good fit if

• You need a passive cooler for LGA 1150
• You are building a compact 1U server
• You use an Intel Xeon or Core i3

Skip if

• You need active fan cooling for high heat
• You use modern LGA 1700 or AM5 sockets
• You are building a standard desktop PC

Verdict: Supermicro SNK-P0046P 1U Passive Heatsink is a specialized component for 1U server builds using LGA 1150 or 1155. It provides reliable passive cooling for low-power Xeon or Core i3 processors in constrained chassis spaces.

7

Supermicro 1U Passive Server CPU Heatsink

Best for: 1U AMD Opteron server builds

Socket Compatibility

Socket G34, Socket F(1207 Pin)

Server Height

1U

Cooling Method

Passive

Compatible Device

10-Blade Server

Dimensions

3.94 x 1.02 x 3.54 inches

Mounting Type

Screw and Spring

View on Amazon: Supermicro 1U Passive Server CPU Heatsink Affiliate link

This Supermicro heatsink is a 1U passive cooling solution designed for AMD Socket G34 and Socket F processors. It measures 3.94 x 1.02 x 3.54 inches and weighs 14.4 ounces. The unit mounts via screw and spring methods. It targets 10-blade server applications. You need this if you require a low-profile passive cooler for specific AMD server CPUs in a 1U chassis.

Pros

• Passive cooling method requires no fans
• Compatible with Socket G34 and Socket F
• Compact 1U server height profile
• Secure screw and spring mounting system

Cons

• Limited to AMD Socket G34 and Socket F CPUs
• Requires specific 1U server chassis airflow
• Heavy for its size at 14.4 ounces

Good fit if

• You are building a 10-blade server system
• You use AMD Opteron 2000 or 8000 series processors
• You need a passive cooling solution for Socket G34

Skip if

• You use Intel LGA sockets
• You need active fan cooling
• You are building a standard desktop PC

Verdict: Supermicro 1U Passive AMD Heatsink fits 10-blade server builds using AMD Opteron 2000 or 8000 series CPUs in Socket G34 or Socket F. It provides passive cooling in a strict 1U form factor.

Specifications side by side

Frequently asked questions