JOYJOM Heatsinks: 5 Picks Ranked by Specs

Quick picks

Our 5 picks

1 Best overall

JOYJOM 2mm Graphite-Coated Copper M.2 Heatsink

Best for: low-profile M.2 2280 SSD cooling

Material

Pure Copper

Compatible Device

M.2 2280 SSD, Laptop, PS5

Dimensions

70x20x2mm

Features

Thermal Pad

Weight

1.06 ounces

View on Amazon: JOYJOM 2mm Graphite-Coated Copper M.2 Heatsink Affiliate link

This JOYJOM heatsink is built for M.2 2280 SSDs in laptops, desktops, and PS5 consoles. It uses pure copper for high thermal conductivity, rated at 401 W/mK. A graphite cover increases the surface area for better cooling. The package includes a 2mm thick unit, a silicon thermal pad, and mounting bands. It helps keep your drive cool to prevent throttling.

Pros

• Pure copper construction with 401 W/mK conductivity
• Graphite cover enhances heat dissipation area
• Includes silicon thermal pad and mounting bands
• Designed specifically for M.2 2280 SSDs

Cons

• Only 2mm height, limiting use in tight laptop spaces
• Cooling effect varies from 10°C to 30°C based on environment
• Exposed copper may be visible under the graphite layer

Good fit if

• You need a low-profile heatsink for a laptop M.2 slot
• You want pure copper for maximum heat transfer
• You are cooling an M.2 2280 SSD in a PS5 or desktop

Skip if

• You require a 4mm thick heatsink for desktop towers
• You need aluminum construction instead of copper
• Your M.2 slot has less than 2mm of clearance

Verdict: JOYJOM M.2 SSD Copper Heatsink fits users who need a compact, high-conductivity solution for M.2 2280 drives in space-constrained devices like laptops and consoles.

2 Best premium

JOYJOM PTM7950 400x160mm Phase Change Thermal Pad

Best for: Large surface thermal management

Compatible Device

CPU, GPU, SSD

Dimensions

400x160x0.25mm

Features

Thermal Pad

Length

15.7 inches

Width

6.3 inches

View on Amazon: JOYJOM PTM7950 400x160mm Phase Change Thermal Pad Affiliate link

This JOYJOM thermal pad uses phase change material for high conductivity. It measures 400x160x0.25mm with a thermal conductivity of 8.5 W/m.K. The pad changes state at 45°C to ensure low contact resistance. It fits CPUs, GPUs, and SSDs. You can cut the large sheet to size. The package includes tools like a screwdriver and cleaning wipe for easy installation.

Pros

• 8.5 W/m.K thermal conductivity
• Phase change at 45°C
• Cuttable 400x160x0.25mm sheet
• Includes installation tools

Cons

• Requires cutting for precise fit
• Large sheet may be excessive for small components
• No mention of specific brand compatibility

Good fit if

• You need a large thermal pad for multiple components
• You want to avoid traditional thermal paste mess
• You are applying thermal pads to GPUs or large SSDs

Skip if

• You need a pre-cut pad for a specific small component
• You prefer a thinner thermal pad under 0.25mm
• You do not want to cut the material yourself

Verdict: JOYJOM PTM7950 400x160x0.25mm Thermal Pad is ideal for users who need a versatile, high-conductivity pad for large surfaces. It suits those building systems with multiple heat-generating components who value easy application and cleanup.

3 Also great

JOYJOM PTM7950 40x40x0.25mm Thermal Pad

Best for: High-performance GPU and CPU cooling

Compatible Device

CPU, GPU, SSD

Dimensions

40×40×0.25 mm

Features

Thermal Pad

Weight

1.76 ounces

View on Amazon: JOYJOM PTM7950 40x40x0.25mm Thermal Pad Affiliate link

This is a 40x40x0.25mm phase change thermal pad designed for GPU and CPU cooling. It features a thermal conductivity of 8.5 W/m·K and a phase-change temperature of 45°C. The material maintains low thermal impedance below 0.04°C cm²/W. You get two pads along with a screwdriver, cleaning wipes, and gloves. It suits users needing reliable heat dissipation for high-performance integrated circuits.

Pros

• High thermal conductivity of 8.5 W/m·K
• Low thermal impedance under 0.04°C cm²/W
• Includes installation tools and cleaning supplies
• Phase change material for effective heat transfer

Cons

• Requires professional guidance for installation
• Only covers two 40x40mm areas
• Melts at 45°C, limiting passive use

Good fit if

• You need high thermal conductivity for GPUs
• You want included installation tools
• You require low thermal impedance

Skip if

• You prefer pre-applied pads
• You need coverage for larger chips
• You lack technical handling skills

Verdict: JOYJOM 40mm PTM7950 Thermal Pad offers strong thermal specs and includes necessary tools for installation. It fits users who need high conductivity for GPUs and CPUs and have the technical skills to handle phase change materials.

4 Also great

JOYJOM PTM7950 30x30x0.25mm Thermal Pad

Best for: small integrated circuits needing high conductivity

Compatible Device

CPU, GPU, SSD

Dimensions

30x30x0.25mm

Features

Thermal Pad

Weight

1.41 ounces

View on Amazon: JOYJOM PTM7950 30x30x0.25mm Thermal Pad Affiliate link

This product is a 2-pack of 30x30x0.25mm PTM7950 phase-change thermal pads. It features 8.5 W/mK thermal conductivity and activates at 45°C. The material re-solidifies on cooling for long-term reliability. It includes accessories like a screwdriver, cleaning wipe, and spatula. You should use it for high-performance integrated-circuit devices. The low thermal impedance ensures efficient heat dissipation during repeated melting cycles.

Pros

• 8.5 W/mK thermal conductivity
• Phase-change material re-solidifies on cooling
• Includes installation tools and cleaning supplies
• Low thermal impedance under 0.04 °C·cm²/W

Cons

• Requires professional handling and technical know-how
• Small 30x30mm size limits compatibility
• Must be chilled for easier film removal

Good fit if

• You need high thermal conductivity for integrated circuits
• You want included installation tools

Skip if

• You prefer standard pre-cut thermal pads
• You lack technical handling skills

Verdict: JOYJOM 30mm PTM7950 Thermal Pad suits users who need precise thermal management for small integrated circuits and are comfortable with phase-change materials. It fits those who value low impedance and included installation tools.

5 Best budget

JOYJOM 20x30x0.25mm PTM7950 Thermal Pad

Best for: small integrated circuits with included tools

Compatible Device

CPU, GPU, Steam Deck, ROG Ally, SSD

Dimensions

20x30x0.25mm

Features

Thermal Pad

Weight

1.76 ounces

View on Amazon: JOYJOM 20x30x0.25mm PTM7950 Thermal Pad Affiliate link

This is a two-pack of PTM7950 phase-change thermal pads sized 20x30x0.25mm. The material shifts to liquid at 45°C, achieving 8.5 W/m·K conductivity. It maintains low thermal impedance for reliable heat transfer in integrated circuits. You get installation tools included. This option suits users needing precise coverage for smaller components who want long-term stability.

Pros

• 8.5 W/m·K thermal conductivity
• Phase-change material for low impedance
• Includes screwdriver and cleaning supplies
• 20x30x0.25mm precise dimensions

Cons

• Requires professional installation skills
• Smaller 20x30mm footprint
• Needs refrigeration for easier handling

Good fit if

• You need pads for small integrated circuits
• You want included installation tools
• You prefer phase-change material stability

Skip if

• You need larger 40x40mm coverage
• You lack experience with thermal pads
• You prefer ready-to-use adhesive sheets

Verdict: JOYJOM 20x30mm PTM7950 Thermal Pad fits users who need precise, tool-included solutions for small integrated circuits and can handle the specific installation requirements.

Specifications side by side

JOYJOM Heatsinks at a Glance

JOYJOM splits its lineup into two distinct groups based on form factor and application. The first group features solid copper M.2 heatsinks designed for compact storage cooling. The JOYJOM 2mm Graphite-Coated Copper M.2 Heatsink leads this category with a low profile ideal for laptops and consoles. These units prioritize direct contact and small footprints for space-constrained builds. The second group consists of PTM7950 phase-change thermal pads for larger surfaces or specific integrated circuits. The JOYJOM PTM7950 400x160mm pad suits broad GPU management, while smaller options like the 40x40mm pad target precise CPU or GPU hotspots. Choose based on whether you need rigid metal contact or adaptable pad coverage for your specific component layout.

Who JOYJOM Products Suit

JOYJOM targets users needing specific thermal solutions rather than general CPU cooling. The range spans from tiny 30mm pads to large 400mm sheets. You find solid copper M.2 heatsinks for storage and phase-change pads for GPUs. Sizes vary from 20x30mm to 400x160mm. No traditional air coolers exist here. You also will not find RGB lighting or fan options. The lineup focuses on direct contact thermal management. This suits builders with space constraints or specific component needs. It does not suit those seeking standard processor cooling.

How to choose the right JOYJOM heatsink

1. Check compatible devices

   Match the product to your hardware type. The JOYJOM 2mm Graphite-Coated Copper M.2 Heatsink lists compatibility with laptops, PS5, and M.2 SSDs. This makes it suitable for compact storage cooling. Other options like the PTM7950 pads are marked for GPU use. Ensure the listed compatible device matches your component. Using a heatsink on the wrong hardware can lead to poor performance or fit issues. Verify the device type before purchasing.

2. Measure surface dimensions

   Size matters for thermal contact. The JOYJOM PTM7950 pads come in various sizes, from 30x30mm to 400x160mm. You must measure your component surface accurately. A 400x160mm pad suits large surfaces, while a 40x40mm pad fits smaller chips. The M.2 heatsink has specific length and width dimensions. Ensure the product covers the heat source completely. Mismatched dimensions reduce cooling efficiency. Check the width, length, and height specs carefully.

3. Consider material conductivity

   Material affects heat transfer speed. The top pick uses copper, which offers high conductivity for M.2 drives. The thermal pads use phase-change material, known for low impedance and high performance. Copper is rigid and durable for static cooling. Phase-change pads conform to surfaces for better contact. Choose copper for simple, robust cooling. Choose phase-change pads for complex surfaces or GPUs. The material choice defines the cooling strategy and long-term reliability.

4. Evaluate height constraints

   Height determines fit in tight spaces. The JOYJOM M.2 heatsink is only 2mm thick. This low profile fits laptops and consoles with limited clearance. The thermal pads are also thin, around 0.25mm. These thin profiles are ideal for space-constrained devices. If you have a tall case, height is less critical. For compact builds, prioritize the lowest height spec. Exceeding height limits can prevent closure or cause damage.

5. Verify included accessories

   Check what comes in the box. Some thermal pads include installation tools. This is helpful for precise application. The M.2 heatsink includes a thermal pad for attachment. Ensure you have the necessary adhesive or pads. Some products may require separate mounting hardware. Verify the features list for included items. Having tools simplifies the setup process. It also ensures proper thermal interface application. Check the attributes section for this detail.

Frequently asked questions

See also

• joyjom nvme m 2 heatsink SSD vs 2 pack 20x30x0 25mm ptm7950
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• best JOYJOM PC cases