khadas3705 Cooling Fan

This heatsink from Khadas is nicely engineered to fit their VIM3 (and apparently Edge as well). It comes with two thermal pads (one for each model) that can be cut to provide ample coverage for the SOC, RAM and PMICs.It's plenty to keep the VIM3 cool under light load, but if you're running sustained heavy loads you'll want a bigger one or one with a fan to avoid throttling and core shutdowns.This one is probably ideal for things like TV box/media center usage, where the CPU loads are not high and silence is preferable to ultra-performance.

heatsink quality is good, performance is great with this heatsink especially if you have a small cooling fan

Easy to assemble and definitely needed as A311D gets hot

Pros: Quite, helps the SOC under 70 degrees centigrade.Cons: None for what it was designed for

I bought the official metal case before buying this fan. I knew before hand the fan won't fit within the case, but that I could modify the case to make it fit. But the fan is so noisy that I decided not to use it. Instead fixed a regular small form factor fan on top the case, which works really well.