^^ He's got it.
Can't find any documentation clarifying the amps for the header - but the norm (and generally minimum) is 1A.
Max 0.2A each, so running a three-way splitter won't present a problem.
Even a four-way splitter (if they exist) shouldn't provide a problem.
In theory you could run 5 of those from the header (if you could find a splitter) but that would put you right at the 1A of the header, so I wouldn't recommend going that far.