  We give an operator space characterization of subalgebras of $C(\Omega,M_n)$.
We also describe injective subspaces of $C(\Omega,M_n)$ and then give
applications to sub-TROs of $C(\Omega,M_n)$. Finally, we prove an `$n$-minimal
version' of the Christensen-Effros-Sinclair representation theorem.
