Flat Heat Pipe 3mm x 8mm x 130mm Copper Heatsink Pipe - Thin Fanless

In this review the Flat Heat Pipe from Bopaodao is evaluated as a simple, low-profile thermal transfer option for hobbyists and DIY system builders. The biggest reason to consider it is its pure copper construction and slim profile, which make it a practical choice when space is limited and passive cooling is required. The review focuses on fit, material quality, and how the part can be used to carry heat away from CPU, GPU, RAM or VRAM in notebooks, phones or compact PC builds.

Key Features

• Material: Made of 99% pure copper, the tube provides strong thermal conductivity for efficient heat dispersion from chips.
• Low profile dimensions: At approximately 3mm thick by 8mm wide and 130mm long, it fits tight spaces where larger heat pipes cannot be used.
• Thin passive cooling: Its flat shape makes it suitable for fanless designs and backplate installations that need a shallow thermal transfer element.
• Custom processing available: The seller can bend and flatten the pipe to order, which helps when a specific routing or shape is required for custom cooling layouts.
• Tolerance notice: Thickness and length tolerances are specified, so builders can plan for a small deviation during installation.

Who It's For

This flat heat pipe is aimed at enthusiasts building or repairing compact laptops, small form factor PCs, or mobile device prototypes who need a thin, high-conductivity link between hot components and a heatsink or backplate. It is also useful for DIY modders who can benefit from custom bending or flattening to route heat where conventional round pipes will not fit.

It is not a complete cooling solution on its own; users who require active cooling, integrated vapor chamber assemblies, or ready-made consumer-grade laptop replacements should look for preassembled heatsinks or cooling modules rather than this single passive element.

Pros & Cons

Pros

• High thermal conductivity from nearly pure copper construction for effective heat transfer.
• Very slim footprint at 3mm thickness, enabling installations in constrained spaces.
• Custom bending and flattening service available to match specific routing requirements.

Cons

• Sold as a single tube without mounting hardware or thermal interface material, so additional parts and skill are required for installation.
• Small manufacturing tolerances mean exact fit should be verified before final installation.

Specifications

Brand	Bopaodao
Material	99% pure copper
Thickness	3mm (0.01 in) with ~0.2mm deviation
Width	8mm (0.32 in)
Length	130mm (5.12 in) with ~0.5mm deviation
Use	CPU, GPU, VRAM, RAM, notebook and mobile device passive cooling

Our Verdict

The Bopaodao flat heat pipe is a sensible, budget-friendly component for DIY passive cooling projects where space is at a premium. Its near-pure copper build and custom processing options make it flexible for routing and mounting, though purchasers should plan to provide thermal pads or paste and mounting arrangements. Recommended for modders and small-form-factor repairs, but not a standalone cooling kit.

Frequently Asked Questions

Can this pipe be bent to fit my layout?
Yes, the seller offers bending and flattening services; contact them with requirements before purchase.

Is this a complete heatsink assembly?
No, this is a single flat heat pipe supplied alone; additional heatsink, pads or adhesive and mounting hardware are required.

What devices is it compatible with?
It is suitable for notebooks, small PCs, CPU or GPU backplates and some mobile device prototypes where a thin passive thermal link is needed.