This heatsink might be useful for who needs a low noise solution with ODROID-XU4. The stock active cooler mounted on the XU4 is more efficient at dissipating heat away from the processor for most of use cases. 

But if you need a fan-less quiet system, this tall heatsink could be a solution. You can replace the active cooling fan with this passive heatsink. 

Down the max CPU clock of the XU4 to 1.4GHz if your system gets thermal throttling often.

- Dimension : 40.0 x 40.0 x 25.0 mm (approx.)

- Blue anodizing surface

- Package includes a thermal paste tube. The thermal paste is responsible for conducting heat from the processor to the heat sink. Reassembling without applying thermal paste will cause the processor to overheat.