siunitx with product-units, mixed units

Question

Is the following possible with full siunitx syntax?

\documentclass{article}
\usepackage{siunitx}

\begin{document}

$\SI{80}{\micro\meter}\times\SI{1.25}{mm}$

\end{document}

For clarification:

I guess there's a difference between the two following statements (maybe not?):

\documentclass{article}
\usepackage{siunitx}

\begin{document}

$\SI{80}{\um}\times\SI{1.25}{\um}$
$\SI{80x1.25}{\um}$

\end{document}

What would be the equivalent for the statement above (with different units)?

Answer 1

Here is how I would do it:

\documentclass{article}

\usepackage{siunitx}

\begin{document}

\noindent You can write ``\verb|\SI{80}{\um} \times \SI{1.25}{\mm}|'' and get the output
\begin{equation}
  \SI{80}{\um} \times \SI{1.25}{\mm}
\end{equation}
but it is not possible to write it with ``full \verb|siunitx| syntax'', as thew OP calls it. The reason for this is given by the author of the package, Joseph  Wright, in a comment to this post.

\end{document}