V4? You mean the V3? It's just a couple of heatsinks for the voltage regulators.

hi rich

its not for the fan?

v4

I don't understand what you are asking, you linked to the V3, we have very few details of the V4 and from what we do have, what you are asking is irrelevant. I can only assume you mean the V3 not the V4 otherwise this has no relevance at all.

The fan is an optional add-on to the V3 boards if the regulators get too hot. The heat sinks are not for the fan, the heat sinks are there to help keep the regulators cool-ish. It is not a fan grille. A fan is not part of the EZ-B.

i dont have the ez-b4 yet. just asking if i need the heatsink for the fan to use.

The v4 won't need one.

ok thanks rich