Flat Heat Pipe 3mm x 6mm x 110mm Copper Heatsink Pipe - Thin Fanless

In this review the Flat Heat Pipe 3mm x 6mm x 110mm from Bopaodao is examined as a simple, low-profile thermal upgrade for compact laptops, small form-factor PCs, and DIY cooling projects. The bottom line: this is a straightforward pure copper thermal tube designed to move heat away from chips without adding fans, and its biggest selling point is material quality and thin profile that makes it usable in tight spaces where conventional heatsinks do not fit.

Key Features

• Pure copper construction: Made of 99% pure copper, the pipe transfers and spreads heat effectively across its length to support passive cooling.
• Low profile dimensions: At approximately 3mm thick, 6mm wide and 110mm long, it fits under backplates and inside slim laptop internals where taller solutions cannot.
• Consistent manufacturing tolerances: Thickness and length are produced with small deviations so installation expectations are predictable for DIY builds.
• Versatile compatibility: Intended for notebooks, phones, GPUs, CPUs, VRAM and RAM, it can be used in a variety of electronic cooling roles.
• Custom processing available: The seller offers bending and flattening services to adapt the tube to specific layouts or mounting constraints.

Who It's For

This pipe is a good fit for hobbyists and technicians who need a slim, passive thermal conductor for retrofit projects or custom laptop backplates. It works well when space is limited and the goal is to redistribute heat to an existing heatsink or chassis surface without adding active cooling.

It is less suited to users who expect dramatic temperature drops on high TDP desktop CPUs or GPUs by itself; this product is a component for a passive solution rather than a full air or liquid cooling system, and those needing heavy-duty cooling should look for larger heat pipes or active coolers.

Pros & Cons

Pros

• High-purity copper provides reliable thermal conductivity for passive heat transfer.
• Very slim cross section makes it usable inside thin laptops and tight enclosures.
• Custom bending and flattening service allows adaptation to specific layouts.

Cons

• As a single thin pipe, it has limited cooling capacity compared with multi-pipe or active cooling solutions.

Specifications

Brand	Bopaodao
Material	99% pure copper
Thickness	3mm (approx; 0.2mm possible deviation)
Width	6mm
Length	110mm (approx; 0.5mm possible deviation)
Intended use	Notebook, phone, laptop, CPU, GPU, VRAM, RAM passive cooling

Our Verdict

The Flat Heat Pipe 3mm x 6mm x 110mm is a practical, low-cost component for anyone building or repairing thin, passive cooling assemblies. It is good value when you need a slim, high-purity copper conductor that can be bent or flattened to fit a tight layout, but it should be paired with other cooling elements for higher heat loads.

Frequently Asked Questions

Can this pipe be bent to fit my layout?
Yes, the seller offers bending and flattening services and can process the pipe to your requirements if you message them.

Will one pipe cool a laptop CPU by itself?
One thin pipe helps redistribute heat but is not a complete cooling solution for high-power CPUs; pair it with an appropriate heatsink or chassis contact area.

What are the manufacturing tolerances?
Thickness may vary by about 0.2mm and length may vary by about 0.5mm according to the product notes.