Features:
This backplane is suitable for RTX 3070 3080 3090.
The copper fins have more heat dissiption area than copper pillars
Pure copper has higher thermal conductivity than aluminum alloy.
Thermal conductivity (heatsink), Pure Copper: 386-401 W/m·K VS Aluminium Alloy: 121-151 W/m·K
The copper plates are welded together , not bonded by glue

How to confirm the heat conduction between the radiator and the backplane of the graphics card is well？
You can turn on your PC and turn off the fan of radiator. when the graphics card is working for some time, touch the top copper plate of the radiator. You will find that the top copper plate is as hot as the original backplane of the graphics card. If not, there may be a problem with the installation.

Specifications:
Material: Pure Copper
Color: As shown
Overall Size:
190×90×11mm (approx./ five layers of copper sheets)
190×90×15mm (approx./ seven layers of copper sheets)
Quantity: 1 PC

6010 bracket fan Parameters:
Bearing Type:Hydrulic bearing
Rated Voltage: DC 12V
Connector: 3PIN（without fan speed monitoring）
Rated Speed: 3900RPM±5% (single)
Noise Level: 26.8dBA±5% (single)
Air flow: 14.8CFM±5% (single)

Note:
1.Transition: 1cm=10mm=0.39inch
2.Please allow 0-1cm error due to manual measurement. pls make sure you do not mind before you bid.
3.Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you!

Package includes: (No retail package)
1 X Copper HeatSink with Double Fan
1 X Laird Ultra Soft Thermal Pad(190x90x1.0mm)
4 X Acetate Cloth Tape for fixing the radiator (high temperature resistance)
6 X Nylon Cable Tie for fixing the radiator